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Anno Domini

Anno Domini

Anno Domini Nostri Iesu Christi ("In the Year of Our Lord Jesus Christ"), commonly shortened to Anno Domini ("In the Year of the Lord"), abbreviated as AD or A.D., is the designation used to number years in the dominant Christian Era in the world today. This is the conventional designation now used with the Julian and Gregorian calendars. It defines an epoch based on the traditionally-reckoned year of the birth of Jesus. Years before the epoch were denoted a.C.n. (for Ante Christum Natum, "before the birth of Christ"), although BC (Before Christ) is now usually used in English. The Christian Era is the only system in everyday use in the Western World, and the main system for commercial and scientific use in the rest of the world. Because this numbering system uses ordinal rather than cardinal numbers, it lacks a year zero--that is to say, there is no "zeroeth" year. The first year after Christ is just that--the first year, and not "year zero." This is a problem with some calculations; so in astronomical year numbering (which for the current era is based on the Christian numbering) a zero is added, and the 'AD' and 'BC' are dropped. In keeping with 'standard decimal numbering', a negative sign '-' is added below 0, so counting down from year 2 would give 2, 1, 0, -1, -2, etc. This results in a one-year shift between the two systems (eg -1 equals 2 BC), but this is only a problem where a precision of one year is required or possible. This article, however, is about the common usage without a year zero. In academic, historical, and archaeological use, particularly in the United States, the same epoch is sometimes referred to as the Common Era (CE) and the BC period as Before the Common Era (BCE). It is often preferred in interfaith dialogue. While it is increasingly common to place AD after a date, by analogy to the use of BC, formal English usage adheres to the traditional practice of placing the abbreviation before the year, as in Latin (e.g., 100 BC, but AD 100). AD 100.]]

Earlier calendar epochs

Anno Domini dating was not the initial choice of Christians in the Mediterranean world; it was not adopted in Western Europe until after the end of the Western Roman Empire, which ended on the traditional date of September 4, 476. Like the other inhabitants of the Roman Empire, early Christians used one of several methods to indicate a specific year — and it was not uncommon for more than one to be used in the same document. This redundancy allows historians to construct parallel regnal lists for many kingdoms and polities by comparing chronicles from different regions, which include the same rulers.

Consular dating

The earliest and most common practice was Roman 'consular' dating. This involved naming both consulares ordinares who had been appointed to this office on January 1 of the civil year. Sometimes one or both consuls might not be appointed until November or December of the previous year, and news of the appointment may not have reached parts of the Roman empire for several months into the current year; thus we find the occasional inscription where the year is defined as "after the consulate" of a pair of consuls.

Dating from the founding of Rome

One common method of dating — which was not as common as thought by moderns — was to indicate the year ab urbe condita, or "from the foundation of the City" (abbreviated AUC), where "the City" meant Rome. This style was not in common use because of long standing disagreements over the exact year Rome was founded. However, with the Millennial Games celebrated by the emperor Philip, the year 753 BC came to be widely accepted. This style became more common in order to reinforce the ideology of the Eternal City in times when the political order appeared insecure.

Regnal years of Roman emperors

Another system that is less commonly found than thought was to use the regnal year of the Roman emperor. At first, Augustus would indicate the year of his rule by counting how many times he had held the office of consul, and how many times the Roman Senate had granted him Tribunican powers, carefully observing the fiction that his powers came from these offices granted to him, rather than from his own person or the many legions under his control. His successors followed his practice until the memory of the Roman Republic faded (late in the 2nd century or early in the 3rd century), when they openly began to use their regnal year.

Indiction cycles

Another common system was to use the indiction cycle (15 indictions made up an agricultural tax cycle, an indiction being a year in duration). Documents and events began to be dated by the year of the cycle (e.g., "fifth indiction", "tenth indiction") in the 4th century, and was used long after the tax was no longer collected. This system was used in Gaul, in Egypt until the Islamic conquest, and in the Eastern Roman Empire until its conquest in 1453.

Other dating systems

A great many local systems or eras were also important, for example the year from the foundation of one particular city, the regnal year of the neighboring Persian emperor, and eventually even the year of the reigning Caliph. The beginning of the notational year also varied from place to place, and was not largely standardized in Europe (except England) as January 1 until the 16th century. The most important of these include the Seleucid era (in use until the 8th century), and the Spanish era (in use in official documents in Aragon, Valencia, and in Castile, into the 14th century. In 1422, Portugal became the last country of western Europe to adopt the Anno Domini era).

History of Anno Domini

As the Roman Empire declined, imperial regnal year dating became sloppy, but remained the norm for 400 years in Christian Church circles. Use of consular dating ended when the emperor Justinian I discontinued appointing consuls in the mid-6th century. The last consul nominated was Anicius Faustus Albinus Basilius in 541. The Papacy was in regular contact throughout the Middle Ages with envoys of the Byzantine world, and had a clear idea — sudden deaths and deposals notwithstanding — of who was the Byzantine emperor at any one time. The Anno Domini system was developed by a monk named Dionysius Exiguus (a Scythian) in Rome in 525, as an outcome of his work on calculating the date of Easter. Byzantine chroniclers like Theophanes continued to date each year in their world chronicles on a different and much more popular Judaeo-Christian basis — from the notional creation of the World as calculated by Christian scholars in the first five centuries of the Christian era. These eras, sometimes called Anno Mundi, "year of the world" (abbreviated AM), by modern scholars, had their own disagreements. The most popular formulation was that established by Eusebius of Caesarea, a historian at the time of Constantine I. The Latin translator Jerome had made a comparison of Eusebius with certain dates deduced from the Old Testament which helped popularize Eusebius's AM count in the West.

Accuracy

Almost all Biblical scholars believe that Dionysius was incorrect in his calculation, and that the date claimed for Jesus' birth was between 8 BC and 4 BC. The latest bound for the birth of Christ is the death of Herod the Great which occurred in 4 BC.

Popularization

The first historian or chronicler to use Anno Domini as his primary dating mechanism was Victor of Tonnenna, an African chronicler of the 7th century. A few generations later, the Anglo-Saxon monk Bede, who was familiar with the work of Dionysius, also used Anno Domini dating in his Ecclesiastical History of the English People, finished in 731. Bede was different from historians working in more important places in two ways: First, he was in Northumbria, outside the bounds of the later Roman Empire. Unlike the Mediterranean-focused countries of Italy, France, and Spain, his people had little knowledge of or interest in who the Roman Emperor was in any particular year. Second, he was confronted with the problem of seven Anglo-Saxon kingdoms and their overlapping regnal years. He had also previously written a chronicle going back to Creation, so he had the numbers at his fingertips. He adopted Anno Domini dating as a way of keeping track of the Anglo-Saxon kingdoms and trying to bring their dates into line with the fragmentary evidence he had for imperial regnal years. In this same history, he was the first to use BC and established the standard for historians of no year zero, even though he used zero in his computus. On the continent of Europe, Anno Domini was introduced as the epoch of choice of the Carolingian Renaissance by Alcuin. This endorsement by Charlemagne and his successors popularizing the usage of the epoch and spreading it throughout the Carolingian Empire ultimately lies at the core of the system's prevalence until present times. Carolingian use of AD may well have had twin ideological reasons of breaking away from using the Byzantine era and defusing certain strains of apocalyptic thought. Outside the Carolingian Empire, Spain continued to date by the Era of the Caesars, or Spanish Era, well into the middle ages, which counted beginning with 38 BC. The Era of Martyrs, which numbered years from the accession of Diocletian in 284, who launched the last yet most severe persecution of Christians, prevailed in the east and is still used officially by the Coptic and Ethiopian churches. Another system was to date from the crucifixion of Jesus Christ, which as early as Hippolytus and Tertullian was believed to have occurred in the consulate of the Gemini (AD 29), which appears in the occasional medieval manuscript.

Alternative methods in the modern era

The French Revolution and the Italian Fascists each seriously attempted to displace the Anno Domini system by instead dating from their own foundings — a non-royal regnal year system (see French Revolutionary Calendar). The Italian Fascists actually used the standard system along with Roman numerals denoting the number of years since the establishment of the Fascist government in 1922. Therefore, 1934, for example, was Year XII. Both attempts ultimately failed to replace the standard calendar. North Korea uses a system that starts in 1911, the year before the birth of their founder Kim Il-Sung, the year 2004 is "Juche 93" in this system because it is the 92nd year after the Juche leader's birth. It is still very common in Taiwan to date events via the Republic of China era, whose first year is 1912. The official Japanese system numbers years from the accession of the current emperor, regarding the calendar year during which the accession occurred as the first year. In the Islamic world, traditional Islamic dating according to the Anno Hegiræ (in the year of the hijra) era remains in use to a varying extent, especially for religious purposes. In Israel, the traditional Hebrew calendar, using an era dating from Creation, is in official use.

References

- Declercq, Georges. Anno Domini: The origins of the Christian era. Turnhout: Brepols, 2000. ISBN 2503510507 (despite beginning with 2, it is English)
- ———. "Dionysius Exiguus and the Introduction of the Christian Era". Sacris Erudiri 41 (2002): 165–246. An annotated version of part of Anno Domini.
- Richards, E. G. Mapping Time. Oxford: Oxford University Press, 2000. ISBN 0192862057

External links

- [http://www.newadvent.org/cathen/03738a.htm The Catholic Encyclopedia, s.v. "General Chronology"]
- [http://www.newadvent.org/cathen/03738a.htm#christian The Catholic Encyclopedia, s.v. "Christian Era"]
- [http://www.languagemonitor.com/wst_page12.html Global Language Monitor: C.E. vs. A.D.] (second article) Category:Calendars Category:Christian history Category:Chronology Category:Latin religious phrases ja:西暦 th:คริสต์ศักราช

Julian calendar

The Julian calendar was introduced in 46 BC by Julius Caesar and took force in 45 BC (709 ab urbe condita). It was chosen after consultation with the Alexandrian astronomer Sosigenes and was probably designed to approximate the tropical year, known at least since Hipparchus. It has a regular year of 365 days divided into 12 months, and a leap day is added to February every four years. Hence the Julian year is on average 365.25 days long. The Julian calendar remained in use into the 20th century in some countries and is still used by many national Orthodox churches. However, too many leap days are added with respect to the astronomical seasons on this scheme. On average, the astronomical solstices and the equinoxes advance by about 11 minutes per year against the Julian year, causing the calendar to gain a day about every 134 years. While Hipparchus and presumably Sosigenes were aware of the discrepancy, although not of its correct value, it was evidently felt to be of little importance. However, it accumulated significantly over time, and eventually led to the reform of 1582, which replaced the Julian calendar with the more accurate Gregorian calendar. The notation "Old Style" (OS) is sometimes used to indicate a date in the Julian calendar, as opposed to "New Style", which indicates a date in the Gregorian Calendar. This notation is used when there might otherwise be confusion about which date is found in a text.

From Roman to Julian

The ordinary year in the previous Roman calendar consisted of 12 months, for a total of 355 days. In addition, an intercalary month, the Mensis Intercalaris, was sometimes inserted between February and March. This intercalary month was formed by inserting 22 days before the last five days of February, creating a 27-day month. It began after a truncated February having 23 or 24 days, so that it had the effect of adding 22 or 23 days to the year, forming an intercalary year of 377 or 378 days. According to the later writers Censorinus and Macrobius, the ideal intercalary cycle consisted of ordinary years of 355 days alternating with intercalary years, which were alternately 377 and 378 days long. On this system, the average Roman year would have had 366¼ days over four years, giving it an average drift of one day per year relative to any solstice or equinox. Macrobius describes a further refinement wherein, for 8 years out of 24, there were only three intercalary years each of 377 days. This refinement averages the length of the year to 365¼ days over 24 years. In practice, intercalations did not occur schematically according to these ideal systems, but were determined by the pontifices. So far as can be determined from the historical evidence, they were much less regular than these ideal schemes suggest. They usually occurred every second or third year, but were sometimes omitted for much longer, and occasionally occurred in two consecutive years. If managed correctly this system allowed the Roman year, on average, to stay roughly aligned to a tropical year. However, if too many intercalations were omitted, as happened after the Second Punic War and during the Civil Wars, the calendar would drift rapidly out of alignment with the tropical year. Moreover, since intercalations were often determined quite late, the average Roman citizen often did not know the date, particularly if he were some distance from the city. For these reasons, the last years of the pre-Julian calendar were later known as years of confusion. The problems became particularly acute during Julius Caesar's pontificate, 63 BC to 46 BC, when there were only five intercalary months, whereas there should have been eight, and none at all during the five Roman years before 46 BC. The Julian reform was intended to correct this problem permanently. Before it took effect, the missed intercalations during Julius Caesar's pontificate were made up by inserting 67 days (22+23+22) between November and December of 46 BC in the form of two months, in addition to 23 days which had already been added to February. Thus 90 days were added to this last year of the Roman Republican calendar, giving it 445 days. Because it was the last of a series of irregular years, this extra-long year was, and is, referred to as the last year of confusion. The first year of operation of the new calendar was 45 BC.

Leap years error

Despite the new calendar being much simpler than the Roman calendar, the pontifices apparently misunderstood the algorithm. They added a leap day every three years, instead of every four years. According to Macrobius, the error was the result of counting inclusively, so that the four year cycle was considered as including both the first and fourth years. This resulted in too many leap days. Caesar Augustus remedied this discrepancy by restoring the correct frequency after 36 years of this mistake. He also skipped several leap days in order to realign the year. The historic sequence of leap years (i.e. years with a leap day) in this period is not given explicitly by any ancient source, although the existence of the triennial leap year cycle is confirmed by an inscription that dates from 9 or 8 BC. The chronologist Joseph Scaliger established in 1583 that the Augustan reform was instituted in 8 BC, and inferred that the sequence of leap years was 42, 39, 36, 33, 30, 27, 24, 21, 18, 15, 12, 9 BC, AD 8, 12 etc. This proposal is still the most widely accepted solution. It has also sometimes been suggested that 45 BC was a leap year. Other solutions have been proposed from time to time. Kepler proposed in 1614 that the correct sequence of leap years was 43, 40, 37, 34, 31, 28, 25, 22, 19, 16, 13, 10 BC, AD 8, 12 etc. In 1883 the German chronologist Matzat proposed 44, 41, 38, 35, 32, 29, 26, 23, 20, 17, 14, 11 BC, AD 4, 8, 12 etc., based on a passage in Dio Cassius that mentions a leap day in 41 BC that was said to be contrary to (Caesar's) rule. In the 1960s Radke argued the reform was actually instituted when Augustus became pontifex maximus in 12 BC, suggesting the sequence 45, 42, 39, 36, 33, 30, 27, 24, 21, 18, 15, 12 BC, AD 4, 8, 12 etc. In 1999, an Egyptian papyrus was published which gives an ephemeris table for 24 BC with both Roman and Egyptian dates. From this it can be shown that the most likely sequence was in fact 44, 41, 38, 35, 32, 29, 26, 23, 20, 17, 14, 11, 8 BC, AD 4, 8, 12 etc, very close to that proposed by Matzat. This sequence shows that the standard Julian leap year sequence began in AD 4, the twelfth year of the Augustan reform. Also, under this sequence the actual Roman year coincided with the proleptic Julian year between 32 and 26 BC. This suggests that one aim of the realignment portion of the Augustan reform was to ensure that key dates of his career, notably the fall of Alexandria on 1 August 30 BC, were unaffected by his correction. Roman dates before 32 BC were typically a day or two before the day with the same Julian date, so 1 January in the Roman calendar of the first year of the Julian reform actually fell on 31 December 46 BC (Julian date). A curious effect of this is that Caesar's assassination on the Ides (15th day) of March in 44 BC fell on 14 March 44 BC in the Julian calendar.

Naming of the months

Immediately after the Julian reform, the twelve months of the Roman calendar were named Ianuarius, Februarius, Martius, Aprilis, Maius, Iunius, Quintilis, Sextilis, September, October, November, and December, just as they were before the reform. Their lengths were set to their modern values. The old intercalary month, the Mensis Intercalaris, was abolished and replaced with an single intercalary day at the same point (i.e. five days before the end of Februarius). The first month of the year continued to be Ianuarius, as it had been since 153 BC. The Romans later renamed months after Caesar and Augustus, renaming Quintilis (originally, "the Fifth month", with March = month 1) as Iulius (July) in 44 BC and Sextilis ("Sixth month") as Augustus (August) in 8 BC. (Note that the letter J was not invented until the 17th century). Quintilis was renamed to honour Caesar because it was the month of his birth. According to a senatusconsultum quoted by Macrobius, Sextilis was renamed to honour Augustus because several of the most significant events in his rise to power, culminating in the fall of Alexandria, fell in that month. Other months were renamed by other emperors, but apparently none of the later changes survived their deaths. Caligula renamed September ("Seventh month") as Germanicus; Nero renamed Aprilis (April) as Neroneus, Maius (May) as Claudius and Iunius (June) as Germanicus; and Domitian renamed September as Germanicus and October ("Eighth month") as Domitianus. At other times, September was also renamed as Antoninus and Tacitus, and November ("Ninth month") was renamed Faustina and Romanus. Commodus was unique in renaming all twelve months after his own adopted names (January to December): Amazonius, Invictus, Felix, Pius, Lucius, Aelius, Aurelius, Commodus, Augustus, Herculeus, Romanus, and Exsuperatorius. Much more lasting than the ephemeral month names of the post-Augustan Roman emperors were the names introduced by Charlemagne. He renamed all of the months agriculturally into Old High German. They were used until the 15th century, and with some modifications until the late 18th century in Germany and in the Netherlands (January-December): Wintarmanoth (winter month), Hornung (spring), Lentzinmanoth (Lent month), Ostarmanoth (Easter month), Winnemanoth (grazing month), Brachmanoth (plowing month), Heuvimanoth (hay month), Aranmanoth (harvest month), Witumanoth (wood month), Windumemanoth (vintage month), Herbistmanoth (autumn/harvest month), and Heilagmanoth (holy month). Translations of these month names are still used to this day in some Slavic languages, such as Polish.

Lengths of the months

According to the 13th century scholar Sacrobosco, the original scheme for the months in the Julian Calendar was very regular, alternately long and short. From January through December, the month lengths according to Sacrobosco for the Roman Republican calendar were: :30, 29, 30, 29, 30, 29, 30, 29, 30, 29, 30, and 29, totaling 354 days. He then thought that Julius Caesar added one day to every month except February, a total of 11 more days, giving the year 365 days. A leap day could now be added to the extra short February: :31, 29 (30), 31, 30, 31, 30, 31, 30, 31, 30, 31, and 30 He then said Augustus changed this to: :31, 28 (29), 31, 30, 31, 30, 31, 31, 30, 31, 30, and 31 giving us the irregular month lengths which we still use today, so that the length of Augustus would not be shorter than (and therefore inferior to) the length of Iulius. Although this theory is still widely repeated, it is certainly wrong. First, a wall painting of a Roman Republican calendar has survived [http://www.personal.psu.edu/users/w/x/wxk116/RomanCalendar/Fasti4.gif] which confirms the literary accounts that the months were already irregular before Julius Caesar reformed it: :29, 28, 31, 29, 31, 29, 31, 29, 29, 31, 29, and 29 Also, the Julian reform did not change the dates of the Nones and Ides. In particular, the Ides are late (on the 15th rather than 13th) in March, May, July and October, showing that these months always had 31 days in the Roman calendar, whereas Sacrobosco's theory requires that the length of October was changed. Further, Sacrobosco's theory is explicitly contradicted by the third and fifth century authors Censorinus and Macrobius, and, finally, it is inconsistent with seasonal lengths given by Varro, writing in 37 BC, before the Augustan reform, with the 31-day Sextilis given by the new Egyptian papyrus from 24 BC, and with the 28-day February shown in the Fasti Caeretani, which is dated before 12 BC.

Year numbering

The dominant method that the Romans used to identify a year for dating purposes was to name it after the two consuls who took office in it. Since 153 BC, they had taken office on 1 January, and Julius Caesar did not change the beginning of the year. Thus this consular year was an eponymous or named year. Roman years were named this way until the last consul was appointed in 541. Only rarely did the Romans number the year from the founding of the city (of Rome), ab urbe condita (AUC). This method was used by Roman historians to determine the number of years from one event to another, not to date a year. Different historians had several different dates for the founding. The Fasti Capitolini, an inscription containing an official list of the consuls which was published by Augustus, used an epoch of 752 BC. The epoch used by Varro, 753 BC, has been adopted by modern historians. Indeed, Renaissance editors often added it to the manuscripts that they published, giving the false impression that the Romans numbered their years. Most modern historians tacitly assume that it began on the day the consuls took office, and ancient documents such as the Fasti Capitolini which use other AUC systems do so in the same way. However, the Varronian AUC year did not formally begin on 1 January, but on Founder's Day, 21 April. This prevented the early Roman church from celebrating Easter after 21 April because the festivities associated with Founder's Day conflicted with the solemnity of Lent, which was observed until the Saturday before Easter Sunday. In addition to consular years, the Romans sometimes used the regnal year of the emperor. Anno Diocletiani, named after Diocletian, was often used by the Alexandrian Christians to number their Easters during the fourth and fifth centuries. In AD 537, Justinian required that henceforth the date must include the name of the emperor, in addition to the indiction and the consul (the latter ending only four years later). The indiction caused the Byzantine year to begin on 1 September, which is still used in the Eastern Orthodox Church for the beginning of the liturgical year. In AD 525 Dionysius Exiguus proposed the system of anno Domini, which gradually spread through the western Christian world, once the system was adopted by Bede. Years were numbered from the supposed date of the incarnation or annunciation of Jesus on 25 March, although this soon changed to Christmas, then back to Annunciation Day in Britain, and the numbered year even began on Easter in France.

From Julian to Gregorian

The Julian calendar was in general use in Europe from the times of the Roman Empire until 1582, when Pope Gregory XIII promulgated the Gregorian Calendar, which was soon adopted by most Catholic countries. The Protestant countries followed later, and the countries of Eastern Europe even later. Great Britain had Thursday 14 September 1752 follow Wednesday 2 September 1752. Sweden adopted the new style calendar in 1753, but also for a twelve-year period starting in 1700 used a modified Julian Calendar. Russia remained on the Julian calendar until after the Russian Revolution (which is thus called the 'October Revolution' but occurred in November according to the Gregorian calendar), in 1917, while Greece continued to use it until 1923. Although all Eastern European countries had adopted the Gregorian calendar on or before 1923, their national Eastern Orthodox churches had not. A revised Julian calendar was proposed during a synod in Constantinople in May of 1923, consisting of a solar part which was and will be identical to the Gregorian calendar until the year 2800, and a lunar part which calculated Easter astronomically at Jerusalem. All Orthodox churches refused to accept the lunar part, so almost all Orthodox churches continue to celebrate Easter according to the Julian calendar (the Finnish Orthodox Church uses the Gregorian Easter). The solar part was only accepted by some Orthodox churches, those of Constantinople, Alexandria, Antioch, Greece, Cyprus, Romania, Poland, Bulgaria (in 1963), and the Orthodox Church in America (although some OCA parishes are permitted to use the Julian calendar). Thus, these churches celebrate the Nativity on the same day that Western Christians do, 25 December Gregorian until 2800. The Orthodox churches of Jerusalem, Russia, Serbia, Georgia, Ukraine, and the Greek Old Calendarists continue to use the Julian calendar for their fixed dates, thus they celebrate the Nativity on 25 December Julian (7 January Gregorian until 2100).

External links

- [http://aa.usno.navy.mil/data/docs/JulianDate.html Julian-Gregorian Converter]
- [http://webexhibits.org/calendars/index.html Calendars through the ages] on WebExhibits.
- [http://www.tyndale.cam.ac.uk/Egypt/ptolemies/chron/roman/chron_rom_cal.htm Roman Dates]
- [http://penelope.uchicago.edu/~grout/encyclopaedia_romana/calendar/romancalendar.html The Roman Calendar]
- [http://5ko.free.fr/jul-greg.php?e=en Synoptical Julian-Gregorian Calendar] - compare the Julian and Gregorian calendars for any date between 1582 and 2100 using this side-by-side reference. Category:Ancient Rome Category:Specific calendars als:Julianischer Kalender ko:율리우스력 ja:ユリウス暦 simple:Julian calendar th:ปฏิทินจูเลียน

Epoch

The word epoch can mean either an interval of time, or a particular point in time used as a reference point.
- In common usage, the term is often used to apply to a period of time when significant related events took place. Synonyms include historical period and era (links are to disambiguation pages).
- In geology, the recent (to the geologist) past is divided into a series of epochs of a few million years each. See geologic timescale.
- In computing and telecommunications, an epoch date is a specific date and time used as the reference for all other times. The Unix epoch is an example.
- In astronomy, an epoch (astronomy) is a moment in time for which celestial coordinates or orbital elements are specified.
- The epoch of a calendar era is the year, day, or instant from which the later (and earlier) years of a calendar are counted.
- The Epoch was a vehicle capable of time travel in the popular SNES game, Chrono Trigger.
- Epoch is a supervillian written in DC comics also known as the Lord of Time.
- Epoch is the name of a Japanese video game company. They released consoles in the early and mid 1980s
- [http://www.imdb.com/title/tt0233657/ Epoch] is the name of a TV movie from the year 2000.

Ante Christum Natum

Ante Christum Natum, usually abbreviated to A.C.N., a.C.n., or ACN, Latin for Before the Birth of Christ, denotes the years before the birth of Jesus Christ. It is hence equivalent to the far more common B.C. (Before Christ) and B.C.E. (Before Common Era). The phrase Ante Christum Natum is commonly seen as the shorter Ante Christum (Latin for Before Christ), again usually abbreviated to A.C. or AC. Category:Calendars Category:Christian history Category:Chronology Category:Latin religious phrases

English language

English is a West Germanic language that is spoken in the United Kingdom, United States, Canada, Australia, New Zealand, Ireland, South Africa, and many other countries. English is now the third-most spoken native language worldwide (after Chinese and Hindi), with some 380 million speakers. It has lingua franca status in many parts of the world, due to the military, economic, scientific, political and cultural influence of the British Empire in the 18th and 19th centuries and that of the United States from the 20th century to the present. Through the global influence of native English speakers in cinema, airlines, broadcasting, science, and the Internet in recent decades, English is now the most widely learned second language in the world. Many students worldwide are required to learn some English, and a working knowledge of English is required in many fields and occupations.

History

English is a West Germanic language that originated from the Old Saxon language brought to Britain by Germanic settlers from various parts of northwest Germany. The original Old English language was subsequently influenced by two successive waves of invasion. The first was by speakers of languages in the Scandinavian branch of the Germanic family, who colonised parts of Britain in the 8th and 9th centuries. The second wave was of the Normans in the 11th century, who spoke a variety of French. These two invasions caused English to become "creolised" to some degree (though it was never a full creole in the linguistic sense of the word); creolisation arises from the cohabitation of speakers of different languages, who develop a hybrid tongue for basic communication. Cohabitation with the Scandinavians resulted in a significant grammatical simplification and lexical enrichment of the Anglo-Friesian core of English; the later Norman occupation led to the grafting onto that Germanic core a more elaborate layer of words from the Romance branch of European languages; this new layer entered English through use in the courts and government. Thus, English developed into a "borrowing" language of considerable suppleness and huge vocabulary. According to the Anglo-Saxon Chronicle, around the year 449, Vortigern, King of the British Isles, invited the "Angle kin" (Angles led by Hengest and Horsa) to help him against the Picts. In return, the Angles were granted lands in the south-east. Further aid was sought, and in response "came men of Ald Seaxum of Anglum of Iotum" (Saxons, Angles, and Jutes). The Chronicle talks of a subsequent influx of settlers who eventually established seven kingdoms, known as the heptarchy. Modern scholarship considers most of this story to be legendary and politically motivated. These Germanic invaders dominated the original Celtic-speaking inhabitants, whose languages survived largely in Scotland, Wales, Cornwall, and Ireland. The dialects spoken by the invaders formed what would be called Old English, which resembled some coastal dialects in what are now the Netherlands and north-west Germany. Later, it was strongly influenced by the North Germanic language Norse, spoken by the Vikings who settled mainly in the north-east (see Jorvik). The new and the earlier settlers spoke languages from different branches of the Germanic family; many of their lexical roots were the same or similar, although their grammars were more distant, including the prefixes, suffixes and inflections of many of their words. The Germanic language of these Old English inhabitants of Britain would be partly creolised by the contact with Norse invaders. This resulted in a stripping away of much of the grammar of Old English, including gender and case, with the notable exception of the pronouns; thus, the language became simpler and plainer. The most famous work from the Old English period is the epic poem "Beowulf", by an unknown poet. For the 300 years following the Norman Conquest in 1066, the Norman kings and the high nobility spoke only a variety of French. A large number of Norman words were assimilated into Old English, with some words doubling for Old English words (for instance, ox/beef, sheep/mutton). The Norman influence reinforced the continual evolution of the language over the following centuries, resulting in what is now referred to as Middle English. Among the changes was a broadening in the use of a unique aspect of English grammar, the "continuous" tenses, with the suffix "-ing". During the 15th century, Middle English was transformed by the Great Vowel Shift, the spread of a standardised London-based dialect in government and administration, and the standardising effect of printing. Modern English can be traced back to around the time of William Shakespeare. The most well-known work from the Middle English period is Geoffrey Chaucer's The Canterbury Tales.

Classification and related languages

The English language belongs to the western subbranch of the Germanic branch of the Indo-European family of languages. The closest living relative of English is Scots (Lallans), a West Germanic language spoken mostly in Scotland and parts of Northern Ireland. Like English, Scots is a direct descendant of Old English, also known as Anglo-Saxon. After Scots, the next closest relative is Frisian—spoken in the Netherlands and Germany. Other less closely related living languages include Dutch, Afrikaans, German, Plattdüütsch and the Scandinavian languages. Many French words are also intelligible to an English speaker (pronunciations are not always identical, of course), because English absorbed a tremendous amount of vocabulary from French, via the Norman language after the Norman conquest and directly from French in further centuries; as a result, a substantial share of English vocabulary is quite close to the French, with some minor spelling differences (word endings, use of old French spellings, etc.), as well as occasional differences in meaning.

Geographic distribution

Norman conquest English is the second or third most widely spoken language in the world today; a total of 600–700 million people use English regularly. About 377 million people use English as their mother tongue, and an equal number of people use it as their second or foreign language. It is used widely in either the public or private sphere in more than 100 countries all over the world. In addition, the language has occupied a primary place in international academic and business communities. The current status of the English language compares with that of Latin in the past. English is the primary language in Antigua and Barbuda, Australia (Australian English), the Bahamas, Barbados (Caribbean English), Bermuda, Belize, Canada (Canadian English), the Cayman Islands, Dominica, the Falkland Islands, Gibraltar, Grenada, Guernsey, Guyana, Ireland (Irish English), Isle of Man, Jamaica (Jamaican English), Jersey, Montserrat, New Zealand (New Zealand English), Saint Helena, Saint Lucia, Saint Kitts and Nevis, Saint Vincent and the Grenadines, Trinidad and Tobago, the Turks and Caicos Islands, the United Kingdom (various forms of British English), the U.S. Virgin Islands, and the United States. English is also an important minority language of South Africa (South African English), and in several other former colonies and current dependent territories of the United Kingdom and the United States, for example Guam and Mauritius. In Hong Kong, English is an official language and is widely used in business activities. It is taught from kindergarten, and is the medium of instruction for a few primary schools, many secondary schools and all universities. Substantial numbers of students acquire native-speaker level. It is so widely used and spoken that it is inadequate to say it is merely a second or foreign language, though there are still many people in Hong Kong with poor or no command of English. The majority of English native speakers (67 to 70 per cent) live in the United States. Although the U.S. federal government has no official languages, it has been given official status by 27 of the 50 state governments, most of which have declared English their sole official language. Hawaii, Louisiana, and New Mexico have also designated Hawaiian, French, and Spanish, respectively, as official languages in conjunction with English. In many other countries where English is not a major first language, it is an official language; these countries include Cameroon, Fiji, the Federated States of Micronesia, Ghana, Gambia, India, Kiribati, Lesotho, Liberia, Kenya, Namibia, Nigeria, Malta, the Marshall Islands, Pakistan, Papua New Guinea, the Philippines, Rwanda, the Solomon Islands, Samoa, Sierra Leone, Swaziland, Tanzania, Zambia and Zimbabwe. English is the most widely learned and used foreign language in the world, and as such, many linguists believe it is no longer the exclusive cultural emblem of "native English speakers", but rather a language that is absorbing aspects of cultures worldwide as it grows in use. Others believe that there are limits to how far English can go in suiting everyone for communication purposes. It is the language most often studied as a foreign language in Europe (32.6 per cent), followed by French, German, and Spanish. It is also the most studied in Japan, South Korea and in the Republic of China (Taiwan), where it is compulsory for most high school students. See English as an additional language.

English as a global language

See also: English on the Internet Because English is so widely spoken, it has been referred to as a "global language". While English is not the official language in many countries, it is the language most often taught as a second language around the world. It is also, by international treaty, the official language for aircraft/airport communication. Its widespread acceptance as a first or second language is the main indication of its global status. There are numerous arguments for and against English as a global language. On one hand, having a global language aids in communication and in pooling information (for example, in the scientific community). On the other hand, it excludes those who, for one reason or another, are not fluent. It can also marginalise populations whose first language is not the global language, and lead to a cultural hegemony of the populations speaking the global language as a first language. Most of these arguments hold for any candidate for a global language, though the last two counter-arguments do not hold for languages not belonging to any ethnic group (like Esperanto). A secondary concern with respect to the spread of global languages (English, Spanish, etc.) is the resulting disappearance of minority languages, often along with the cultures and religions that are primarily transmitted in those languages. English has been implicated in a number of historical and ongoing so-called "language deaths" and "linguicides" around the world, many of which have also led to the loss of cultural heritage. In the Americas, Native American nations have been most strongly affected by this phenomenon.

Dialects and regional variants

The expansiveness of the British and the Americans has spread English throughout the globe. Because of its global spread, it has bred a variety of English dialects and English-based creoles and pidgins. The major varieties of English in most cases contain several subvarieties, such as Cockney within British English, Newfoundland English within Canadian English, and African American Vernacular English ("Ebonics") within American English. English is considered a pluricentric language, with no variety being clearly considered the only standard. Some consider Scots as an English dialect. Pronunciation, grammar and lexis differ, sometimes substantially. The Scottish dialect retains many German aspects including guttural pronunciations. Because of English's wide use as a second language, English speakers can have many different accents, which may identify the speaker's native dialect or language. For more distinctive characteristics of regional accents, see Regional accents of English speakers. For more distinctive characteristics of regional dialects, see List of dialects of the English language. Many countries around the world have blended English words and phrases into their everyday speech and refer to the result by a colloquial name that implies its bilingual origins, which parallels the English language's own addiction to loan words and borrowings. Named examples of these ad-hoc constructions, distinct from pidgin and creole languages, include Engrish, Wasei-eigo, Franglais and Spanglish. (See List of dialects of the English language for a complete list.) Europanto combines many languages but has an English core.

Constructed variants of English

- Basic English is simplified for easy international use. It is used by some aircraft manufacturers and other international businesses to write manuals and communicate. Some English schools in the Far East teach it as an initial practical subset of English.
- Special English is a simplified version of English used by the Voice of America. It uses a vocabulary of 1500 words.
- English reform is an attempt to improve collectively upon the English language.
- Seaspeak and the related Airspeak and Policespeak, all based on restricted vocabularies, were designed by Edward Johnson in the 1980s to aid international co-operation and communication in specific areas.
- European English is a new variant of the English language created to become the common language in Europe.

Sounds

Vowels

Notes: It is the vowels that differ most from region to region. Where symbols appear in pairs, the first corresponds to the sounds used in North American English, the second corresponds to English spoken elsewhere. #North American English lacks this sound; words with this sound are pronounced with or . According to The Canadian Oxford Dictionary (1998), this sound is present in Standard Canadian English. #Many dialects of North American English do not have this vowel. See cot-caught merger. #The North American variation of this sound is a rhotic vowel. #Many speakers of North American English do not distinguish between these two unstressed vowels. For them, roses and Rosa's are pronounced the same, and the symbol usually used is schwa . #This sound is often transcribed with or with . #The letter U can represent either /u/ or the iotated vowel /ju/.

Consonants

This is the English Consonantal System using symbols from the International Phonetic Alphabet (IPA). #The velar nasal is a non-phonemic allophone of /n/ in some northerly British accents, appearing only before /g/. In all other dialects it is a separate phoneme, although it only occurs in syllable codas. #The alveolar flap is an allophone of /t/ and /d/ in unstressed syllables in North American English and increasingly in Australian English. This is the sound of "tt" or "dd" in the words latter and ladder, which are homophones in North American English. This is the same sound represented by single "r" in some varieties of Spanish. #In some dialects, such as Cockney, the interdentals /θ/ and /ð/ are usually merged with /f/ and /v/, and in others, like African American Vernacular English, /ð/ is merged with /d/. In some Irish varieties, /θ/ and /ð/ become the corresponding dental plosives, which then contrast with the usual alveolar plosives. #The sounds are labialised in some dialects. Labialisation is never contrastive in initial position and therefore is sometimes not transcribed. #The voiceless velar fricative /x/ is used only by Scottish or Welsh speakers of English for Scots/Gaelic words such as loch or by some speakers for loanwords from German and Hebrew like Bach or Chanukah /xanuka/, or in some dialects such as Scouse (Liverpool) where the affricate [kx] is used instead of /k/ in words such as docker . Most native speakers have a great deal of trouble pronouncing it correctly when learning a foreign language. Most speakers use the sounds [k] and [h] instead. #Voiceless w is found in Scottish, Irish, some upper-class British, some eastern United States, and New Zealand accents. In all other dialects it is merged with /w/.

Voicing and Aspiration

Voicing and aspiration of stop consonants in English depend on dialect and context, but a few general rules can be given:
- Voiceless plosives and affricates (//, //, //, and //) are aspirated when they are word-initial or begin a stressed syllable and are not part of a consonant cluster—compare pin [] and spin [].
- In some dialects, aspiration extends to unstressed syllables as well.
- In other dialects, such as Indian English, most or all voiceless stops may remain unaspirated.
- Word-initial voiced plosives may be devoiced in some dialects.
- Word-terminal voiceless plosives may be unreleased or accompanied by a glottal stop in some dialects (e.g. many varieties of American English)—examples: tap [], sack [].
- Word-terminal voiced plosives may be devoiced in some dialects (e.g. some varieties of American English)—examples: sad [], bag []. In other dialects they are fully voiced in final position, but only partially voiced in initial position.

Intonation

Tone groups

English is an Intonation language. This means that the pitch of the voice is used syntactically, for example, to convey surprise and irony, or to change a statement into a question. In English, intonation patterns are on groups of words, which are called tone groups, tone units, intonation groups or sense groups. Tone groups are said on a single breath and, as a consequence, are of limited length, more often being on average five words long or lasting roughly two seconds. The structure of tone groups can have a crucial impact on the meaning of what is said. For example: :- :- :-

Characteristics of intonation

Each tone group can be subdivided into syllables, which can either be stressed (strong) or unstressed (weak). There is always a strong syllable, which is stressed more than the others. This is called the nuclear syllable. For example: :That | was | the | best | thing | you | could | have | done! Here, all syllables are unstressed, except the syllables/words "best" and "done", which are stressed. "Best" is stressed harder and, therefore, is the nuclear syllable. The nuclear syllable carries the main point the speaker wishes to make. For example: :John had stolen that money. (... not I) :John had stolen that money. (... you said he hadn't) :John had stolen that money. (... he wasn't given it) :John had stolen that money. (... not this money) :John had stolen that money. (... not something else) The nuclear syllable is spoken louder than all the others and has a characteristic change of pitch. The changes of pitch most commonly encountered in English are the rising pitch and the falling pitch, although the fall-rising pitch and/or the rise-falling pitch are sometimes used. For example: :When do you want to be paid? :Nów? (rising pitch. In this case, it denotes a question: can I be paid now?) :Nòw (falling pitch. In this case, it denotes a statement: I choose to be paid now)

Grammar

English grammar is based on its Germanic roots, though some scholars during the 1700s and 1800s attempted to impose Latin grammar upon it, with little success. English is just slightly inflected, much less so than most Indo-European languages. It compensates for this by placing more grammatical information in auxiliary words and word order. Unlike most other Indo-European languages, modern nominal groups (nouns) in English do not carry gender, although an archaic form of gender is technically assigned as either masculine, feminine, neuter or common. Engendered nouns are only apparent in special cases, such as "I loved that ship as if she were my own", where the noun "ship" is referred to by its feminine pronoun.

Vocabulary

Almost without exception, Germanic words (which include all the basics such as pronouns and conjunctions) are shorter and more informal. Latinate words are often regarded as more elegant or educated. However, the excessive use of Latinate words is often mistaken for either pretentiousness (as in the stereotypical policeman's talk of "apprehending the suspect") or obfuscation (as in a military document which says "neutralise" when it means "kill"). George Orwell's essay Politics and the English Language gives a thorough treatment of this feature of English. An English speaker is often able to choose between Germanic and Latinate synonyms: "come" or "arrive"; "sight" or "vision"; "freedom" or "liberty"—and sometimes also between a word inherited through French and a borrowing direct from Latin of the same root word: "oversee", "survey" or "supervise". The richness of the language is that such synonyms have slightly different meanings, enabling the language to be used in a very flexible way to express fine variations or shades of thought. List of Germanic and Latinate equivalents In everyday speech the majority of words will normally be Germanic. If a speaker wishes to make a forceful point in an argument in a very blunt way, Germanic words will usually be chosen. A majority of Latinate words (or at least a majority of content words) will normally be used in more formal speech and writing, such as a courtroom or an encyclopedia article. English is noted for the vast size of its active vocabulary and its fluidity. English easily accepts technical terms into common usage and imports new words which often come into common usage. In addition, slang provides new meanings for old words. In fact this fluidity is so pronounced that a distinction often needs to be made between formal forms of English and contemporary usage. See also sociolinguistics.

Number of words in English

As the General Explanations at the beginning of the Oxford English Dictionary state: :The Vocabulary of a widely diffused and highly cultivated living language is not a fixed quantity circumscribed by definite limits.... there is absolutely no defining line in any direction: the circle of the English language has a well-defined centre but no discernible circumference. The vocabulary of English is undoubtedly vast, but assigning a specific number to its size is more a matter of definition than of calculation. Unlike other languages, there is no Academy to define officially accepted words. Neologisms are coined regularly in medicine, science and technology—some enter wide usage; others remain restricted to small circles. Foreign words used in immigrant communities often make their way into wider English usage. Archaic, dialectal, and regional words might be considered "English" or not. The Oxford English Dictionary (2nd edition) includes over 500,000 headwords, following a rather inclusive policy: :It embraces not only the standard language of literature and conversation, whether current at the moment, or obsolete, or archaic, but also the main technical vocabulary, and a large measure of dialectal usage and slang (Supplement to the OED, 1933). The difficulty of defining the number of words is compounded by the emergence of new versions of English, such as Asian English.

Word origins

One of the consequences of the French influence is that the vocabulary of English is, to a certain extent, divided between those words which are Germanic (mostly Old English) and those which are "Latinate" (Latin-derived, mostly from Norman French but some borrowed directly from Latin). A computerised survey of about 80,000 words in the old Shorter Oxford Dictionary (3rd ed.) was published in Ordered Profusion by Thomas Finkenstaedt and Dieter Wolff (1973) which estimated the origin of English words as follows:
- French, including Old French and early Anglo-French: 28.3%
- Latin, including modern scientific and technical Latin: 28.24%
- Old and Middle English, Old Norse, and Dutch: 25%
- Greek: 5.32%
- No etymology given: 4.03%
- Derived from proper names: 3.28%
- All other languages contributed less than 1% James D. Nicoll made the oft-quoted observation: "The problem with defending the purity of the English language is that English is about as pure as a cribhouse whore. We don't just borrow words; on occasion, English has pursued other languages down alleyways to beat them unconscious and riffle their pockets for new vocabulary." [http://groups.google.com/groups?selm=1990May15.155309.8892%40watdragon.waterloo.edu&oe=UTF-8&output=gplain]

Writing system

English is written using the Latin alphabet. The spelling system or orthography of English is historical, not phonological. The spelling of words often diverges considerably from how they are spoken, and English spelling is often considered to be one of the most difficult to learn of any language that uses an alphabet. See English orthography.

Basic sound-letter correspondence

Written accents

English includes some words which can be written with accent marks. These words have mostly been imported from other languages, usually French. But it is increasingly rare for writers of English to actually use the accent marks for common words, even in very formal writing, to the point where actually writing the accent may be interpreted as a sign of pretension—though this view is counterbalanced by the view that fine typography should preserve accents, especially where it makes a distinction in pronunciation (compare façade vs. facade which would rhyme with cascade). The strongest tendency to retain the accent is in words that are atypical of English morphology and therefore still perceived as slightly foreign. For example, café has a pronounced final e, which would be silent by the normal English pronunciation rules. Some examples: ångström, appliqué, attaché, blasé, bric-à-brac, café, cliché, crème, crêpe, façade, fiancé(e), flambé, naïve, né(e), papier-mâché, passé, piñata, protégé, raison d'être, résumé, risqué, über-, vis-à-vis, voilà. For a more complete list, see List of English words with diacritics. Some words such as rôle and hôtel were first seen with accents when they were borrowed into English, but now the accent is almost never used. The words were considered very French borrowings when first used in English, even accused by some of being foreign phrases used where English alternatives would suffice, but today their French origin is largely forgotten. The accent on "élite" has disappeared from most publications today, but Time magazine still uses it. For some words such as "soupçon" however, the only spelling found in English dictionaries (the OED and others) uses the diacritic. Italics, with appropriate accents, are generally applied to foreign terms that are uncommonly used in or have not been assimilated into English: for example, adiós, coup d'état, crème brûlée, pièce de résistance, raison d'être, über (übermensch), vis-à-vis. It is also possible to use a diaeresis to indicate a syllable break, but again this is often left out or a hyphen used instead. Examples: coöperate (or co-operate), daïs, naïve, noël, reëlect (or re-elect). One publication that still uses a diaeresis to indicate a syllable break is the New Yorker magazine. Written accents are also used occasionally in poetry and scripts for dramatic performances to indicate that a certain normally unstressed syllable in a word should be stressed for dramatic effect, or to keep with the meter of the poetry. This use is frequently seen in archaic and pseudoarchaic writings with the "-ed" suffix, to indicate that the "e" should be fully pronounced, as with cursèd. In certain older texts (typically in Commonwealth English), the use of ligatures is common in words such as archæology, œsophagus, and encyclopædia. Such words have Latin or Greek origin. Nowadays, the ligatures have been generally replaced in Commonwealth English by the separated letters "ae" and "oe" ("archaeology", "oesophagus") and in American English by "e" ("archeology", "esophagus"). However, the spellings "oeconomy" and "oecology" are now generally replaced by "economy" and "ecology" in Commonwealth English, making these spellings the same as in American English.
See also

- English literature
- Formal written English - regional differences
- List of languages
- Common phrases in various languages
Dialects

- American and British English differences
- English speaking Europe
- General American
- List of dialects of the English language
Pronunciation

- General American
- International Phonetic Alphabet for English
- List of words of disputed pronunciation
- Non-native pronunciations of English
- Phonemic differentiation in English
- Received Pronunciation
- Regional accents of English speakers
- Rhotic and non-rhotic accents
Social, cultural or political

- English as a lingua franca for Europe
- English as an additional language
- English on the Internet
- Foreign language influences in English
- Languages in the United States
- Lists of English words of international origin
- Anglosphere
- Anglo-Saxon
Grammar

- English declension
- English plural
- English verb conjugation
- Initial-stress-derived noun
- Present progressive tense
Usage

- Dictionary
- Like
- List of archaic English words and their modern equivalents
- List of unusual English words
- Longest word in English
- Misspelling
- Gender-neutral language
- Singular they
- Siamese twins (English language)
External links

- [http://www.abroadlanguages.com/al/english/ Learning English abroad] and online. With dictionaries, games, penpals, etc.
- [http://www.bbc.co.uk/radio4/routesofenglish/index.shtml BBC - Radio 4 - Routes of English]
- [http://www.englishtenseswithcartoons.com Short Discriptions of the English Tenses]
- [http://www.ego4u.com/ English Grammar Online] free exercises, explanations, games and teaching materials on English as a foreign language
- [http://www.eslbase.com/ TEFL] - Teaching English as a Foreign Language - information and advice
- http://www.teach-yourself-english.com/ Easy-going learning aid
- [http://www.englisch-hilfen.de/en Learning English Online] grammar, vocabulary, exercises, exams - English as a second language.
- [http://www.english.hb.pl Pako's English Page - Articles and advice on learning English]
- [http://www.ethnologue.com/show_language.asp?code=eng Ethnologue report for English]
- [http://www.LanguageMonitor.com LanguageMonitor] - Watchdog on contemporary English usage
- [http://www.vec.ca/english/1/english.cfm Development of English]
- [http://www.esu.org English Speaking Union]
- [http://www2.ignatius.edu/faculty/turner/languages.htm The World's Most Widely Spoken Languages]
- [http://www.antimoon.com/ Antimoon - How to learn English] - Advice and inspiration for learners of English.
- [http://www.zozanga.com/ Zozanga ESL - Learn Online English] How to learn English.
- [http://www.quiz-tree.com/English_Spelling_main.html Free English spelling quizzes]
- [http://inenglishofcourse.pl Conversation and Resource Point for Learners of English]
- [http://www.globalenglishsalon.com Global English Salon] - Listen to English online free.
- [http://www.loecsen.com/travel/discover_pop.php?lang=en&to_lang=2&learn-English/ Learn and listen to useful expressions in English] Each expression is presented with an audio recording and an illustration
- [http://www.whatdoesthatmean.com What Does That Mean?] A wiki based lexicon of English idioms from around the world
- [http://www1.ku-eichstaett.de/SLF/EngluVglSW/ELiX/bge.pdf Basic Global English]
Dictionaries

- [http://www.oed.com Oxford English Dictionary] The definitive record of the English language
- [http://dicts.info/dictlist1.php All free English dictionaries] Collection of many free English dictionaries.
- [http://dictionary.cambridge.org Cambridge Dictionary]
- [http://www.freelang.net/dictionary/french.html Freelang - French-English Dictionary made by Bertrand Cornu]
Further reading

- Baugh AC and Cable T. A history of the English language (5th ed), Rouledge, 2002 (ISBN 0415280990_
- Crystal, D. The Cambridge encyclopedia of the English language (2nd ed), Cambridge University Press, 2003 (ISBN 0521530334)
- Halliday, MAK. An introduction to functional grammar (2nd ed), London, Edward Arnold, 1994 (ISBN 0340557826)
- McArthur, T (ed). The Oxford Companion to the English Language, Oxford University Press, 1992 (ISBN 019214183X)
- Robinson, Orrin, "Old English and Its Closest Relatives", Stanford Univ Press, 1992 (ISBN 0-8047-2221-8) English language Category:Languages of Fiji Category:Languages of Guam Category:Languages of Hong Kong Category:Languages of Singapore Category:Languages of the Philippines Category:Languages of the United Kingdom Category:Languages of the United States Category:Languages of Canada Category:Languages of New Zealand Category:Languages of India als:Englische Sprache ko:영어 ms:Bahasa Inggeris zh-min-nan:Eng-gí ja:英語 nb:Engelsk språk simple:English language th:ภาษาอังกฤษ

Year zero

Year zero is a name used by some scholars when working with calendar systems. In common usage in the Western World, most people don't refer to a year zero, so the year Anno Domini 1 is preceded by the year 1 BC, without an intervening year zero. This is because our system of numbering uses ordinal rather than cardinal numbers--the first year is just that--the first year. The year "2005" actually signifies "the 2005th year." The presence or absence of year 0 is determined by convention within groups such as historians or astronomers, with astronomers finding a year zero useful. Neither the choice of calendar system (whether Julian or Gregorian) nor the era (Anno Domini or Common Era) determines whether a year zero will be used. If writers do not use the convention of their group, they must explicitly state whether they include a year 0 in their count of years, otherwise their historical dates will be misunderstood. No historians include a year 0 when numbering years in the current standard era. Thus, regardless of the appellation or calendar employed (Julian or Gregorian), 1 BC (or 1 BCE) always immediately precedes AD 1 (or 1 CE). Historians even refuse to use a year 0 when using negative years before our positive era, hence their −1 immediately precedes 1 (for example, V. Grumel, La chronologie (1958), page 30). The anno Domini method of numbering years was not widely used in Western Europe until the 9th century, and the 1 January to 31 December historical year was not uniform throughout Western Europe until 1752. The terms anno Domini, Dionysian era, Christian era, vulgar era, and common era were used interchangeably between the Renaissance and the 19th century, at least in Latin. But vulgar era was suppressed in English at the beginning of the twentieth century after vulgar acquired the meaning of "offensively coarse", replacing its original meaning of "common" or "ordinary". Consequently, historians regard all these eras as equal. However, at least two groups do include a year 0 when they number the years before these eras: astronomers and some Maya historians. In addition, some calendars of South Asia begin their counts of years with a year 0.

Bede

Bede was the first historian to use a BC year and hence the first to adopt the convention of no year 0 between BC and AD, in his Historia ecclesiastica gentis Anglorum (Ecclesiastical history of the English people, 731). Previous Christian histories used anno mundi (in the year of the world"), or anno Adami ("in the year of Adam", beginning five days later, used by Africanus), or anno Abrahami ("in the year of Abraham", beginning 3,412 years later according to the Septuagint, used by Eusebius), all of which assigned "one" to the year beginning at Creation, or the creation of Adam, or the birth of Abraham, respectively. All began with year 1 because the counting numbers begin with one, not zero. Bede simply continued this earlier tradition relative to the AD era. The inventor of AD, Dionysius Exiguus in 525, did not specify whether he began his count at one or zero (nor did he mention BC). Bede did not seqentially number any other calendar units (days of the month, weeks of the year, or months of the year—but he was aware of the Jewish days of the week which were numbered beginning with one (except for the seventh which was called the Sabbath) and partially numbered the days of his Christian week accordingly (Lord's day, second day, …, sixth day, Sabbath in English translation). It is often argued that Bede did not use a year zero because he did not know about the number zero. Although our symbol for zero (0) did not enter Europe until the eleventh century, Bede and Dionysius were well aware of two words for zero—the Latin words nulla and nihil, which in normal speech meant nothing. Nulla was used whenever zero was a member of a series of numbers, whether the other numbers were Roman numerals or Latin words. Dionysius used this Latin zero in the very same table wherein he introduced his anno Domini era, but in a neighboring column—it was the first epact of the 19-year cycle used to calculate Easter (see the [http://hbar.phys.msu.su/gorm/chrono/paschata.htm nineteen year cycle of Dionysius]). Bede continued to use this zero epact in his De temporum ratione (On the reckoning of time, 725), but did not use it between BC and AD. Nihil was used for a remainder of zero when a number was evenly divisible (see arguments two and five in the nineteen year cycle of Dionyius just cited). In chapter II of book I of Ecclesiastical history, Bede stated that Julius Caesar invaded Britain "in the year 693 after the building of Rome, but the sixtieth year before the incarnation of our Lord", while stating in chapter III, "in the year of Rome 798, Claudius" also invaded Britain and "within a very few days … concluded the war in … the fortysixth [year] from the incarnation of our Lord" [http://www.fordham.edu/halsall/basis/bede-book1.html]. Although both dates are wrong, they are sufficient to conclude that Bede did not include a year zero between BC and AD: 798 − 693 + 1 (because the years are inclusive) = 106, but 60 + 46 = 106, which leaves no room for a year zero. The English term "before Christ" (BC) is not a direct translation of the Latin term "before the incarnation of our Lord" (itself never abbreviated), but is only a rough equivalent: Incarnation means the conception of Christ, which since the 4th century has been celebrated on 25 March, which was nine months before the date on which his birth is celebrated, 25 December. Bede's singular use of 'BC' continued to be used sporadically throughout the Middle Ages (albeit with a correct year). The first extensive use of 'BC' (hundreds of times) occurred in Fasciculus Temporum by Werner Rolevinck in 1474, alongside years of the world (anno mundi).

Astronomers

Astronomers include a year 0 immediately before year 1. The first use of an astronomical year 0 is traditionally attributed to Jacques Cassini in his Tables astronomiques (Astronomical Tables, 1740). His stated reasons for including a year zero were (page 5, translated from French):

The year 0 is that in which one supposes that Jesus Christ was born, which several chronologists mark 1 before the birth of Jesus Christ and which we marked 0, so that the sum of the years before and after Jesus Christ gives the interval which is between these years, and where numbers divisible by 4 mark the leap years as so many before or after Jesus Christ.

But Philippe de La Hire had used a year zero earlier in 1702 in his Tabulæ Astronomicæ (Astronomical Tables) in the form Christum o. ("Christ 0"), without explanation. Both Cassini and La Hire used BC years before their year 0 and AD years thereafter (hence the sequence 1 BC, 0, AD 1). That is why Cassini stated that their sum yielded the interval. For example, 1 + 1 = 2. Beginning in the 19th century, some astronomers began to use negative years before their year 0, while other astronomers continued to use BC years before their year 0. By the mid 20th century, all astronomers were using negative years before year 0 (hence the sequence −1, 0, 1). Thus modern astronomers would state that the years' difference yields the interval, just as it does if the years are both positive or both negative. For example, 1 − (−1) = 2, and 2000 − 1999 = 1. Although 'AD' is omitted from later years, leaving a bare number, a positive sign (+) is sometimes prefixed to the number. Because of possible confusion with the earlier use of an astronomical BC, only in the modern version can it be said that astronomical year 0 equals the historical year 1 BC. ISO 8601:2004 and ISO 8601:2000, but not ISO 8601:1988, explicitly use astronomical year numbering in their date reference systems. Because they also specify the use of the proleptic Gregorian calendar for all years before 1582, some readers erroneously conclude that a year zero is always included in that calendar, whereas that is unusual. The "basic" format for year 0 is the four-digit form 0000, which equals the historical year 1 BC. Several "expanded" formats are possible: -0000 and +0000, as well as five- and six-digit versions. Earlier years are also negative four-, five- or six-digit years, which have an absolute value one less than the equivalent BC year, hence -0001 = 2 BC. Because only ISO 646 (7-bit ASCII) characters are allowed by ISO 8601, the minus signs are hyphens.

South Asian calendars

All eras used with Hindu and Buddhist calendars, such as the Saka era or the Kali Yuga, begin with a year 0 because all of these calendars use elapsed, expired, or complete years, in contrast with most other calendars which use current years. A complete year had not yet elapsed for any date in the year beginning at the epoch, thus that could not be year 1 — instead, it was year 0. This is similar to the Western method of stating a person's age — people do not reach age one until one year has elapsed since birth (but their age during the year beginning at birth is specified in months, not usually as age zero; however if ages were specified in years and months, such a person would be said to be, for example, 0 years and 6 months old).

Maya historians

Many Maya historians, but not all, assume (or used to assume) that a year 0 exists in the modern calendar and thus specify that the epoch of the Long Count of the Maya calendar occurred in 3113 BC rather than 3114 BC. This would require the sequence 1 BC, 0, AD 1 as in early astronomical years.

Third millennium

Historians note that the 3rd millennium began on 1 January 2001 because they regard the Christian Era as beginning with year 1, whereas many people assumed that it began on 1 January 2000 because that was when the most significant digit of the year changed (1 → 2). Astronomical year numbering cannot be used to support year 2000 as the first year of the 3rd millennium because of uncertainty regarding astronomical millennia. Including year 0 in the first positive millennium (0 to 999) while excluding it from the first negative millennium (−1000 to −1) would be inconsistent. But consistency produces unusual results: either year 0 separates the first positive millennium (1 to 1000) from the first negative millennium (−1000 to −1) or it is included in both (−999 to 0 to 999).

Media

In the movie Back to the Future Dr. Emmett Brown, the inventor of a time machine, enters the input date of the "birth of Christ" on a keypad as December 25, 0000. Not only does the entered input date use the astronomical year number, but the entered input date implies that Jesus was actually born in that year (he was born between 8 BC and AD 9, according to different sources), and also that Christianity's celebration of Christmas on December 25 is a true historical anniversary rather than a traditional date (biblical clues indicate that Jesus was born during the spring (for example, shepherds watching their flocks by night in Luke could have been present to aid births). It is believed that the December 25 date was chosen to provide continuity to worshippers used to observing the Pagan Winter Solstice festivals)). The novel of the film has Doc saying that "assuming that this date is indeed correct, all we'd need to do is find our way to Bethlehem!" - so it's possible that Dr. Emmett Brown was just showing off and/or being funny (both to Marty McFly and the audiences of the movie). The famous and fictitious theologian Franz Bibfeldt's most famous work relates to the year 0: a 1927 dissertation submission to the University of Worms entitled "[http://magazine.uchicago.edu/9502/Feb95Bibfeldt.html The Problem of the Year 0]". The Zork timeline included with the comedy game Zork Grand Inquisitor features the year 0 GUE with the annotation: "As the year zero begins, people feel fairly confident that something big is about to happen." (As if the people who lived in the BE period were counting down to 0 even before it happened).

Notes

# While it is increasingly common to place AD after a date, by analogy to the use of BC, formal English usage adheres to the traditional practice of placing the abbreviation before the year, as in Latin (e.g., 100 BC, but AD 100). Category:Years Category:Chronology Category:Celestial coordinate system ko:0년

United States

:For alternative meanings, see the disambiguation page for US, USA, United States, or American. The United States of America is a federal democratic republic situated primarily in central North America. It comprises 50 states and one federal district, and has several territories. It is also referred to, with varying formality, as the United States, the U.S., the U.S.A., the States, or simply and most commonly, America. The official founding date of the United States is July 4, 1776, when the Second Continental Congress—representing thirteen British colonies—adopted the Declaration of Independence. However, the structure of the government was profoundly changed in 1788, when the states replaced the Articles of Confederation with the United States Constitution. The date on which each of the fifty states adopted the Constitution is typically regarded as the date that state "entered the Union" (became part of the United States). Since the mid-20th century, following World War II, the United States has emerged as a dominant global influence in economic, political, military, scientific, technological, and cultural affairs.

Geography and climate

The United States shares land borders with Canada (to the north) and Mexico (to the south), and territorial water boundaries with Canada, Russia, the Bahamas, and numerous smaller nations. It is otherwise bounded by the Pacific Ocean and the Bering Sea, in the west; the Arctic Ocean, in the northernmost areas; and the Atlantic Ocean, the Gulf of Mexico, and the Caribbean Sea, in the eastern and southeastern areas. Forty-eight of the states are in the single region between Canada and Mexico; this group is referred to, with varying precision and formality, as the continental or contiguous United States, sometimes abbreviated CONUS, and as the Lower 48. Alaska, which is not included in the term contiguous United States, is at the northwestern end of North America, separated from the Lower 48 by Canada. The archipelago of Hawaii is in the Pacific Ocean. The capital city, Washington, District of Columbia is a federal district located on land donated by the state of Maryland. (Virginia also donated land, but it was returned in 1847.) The United States also has overseas territories with varying levels of independence and organization. When inland water is included in the total area, only Russia and Canada are larger than the United States; if inland water is excluded, China ranks third and the U.S. ranks fourth. The United States' total area is 3,718,711 square miles (9,631,418 km²), of which land makes up 3,537,438 square miles (9,161,923 km²) and water makes up 181,273 square miles (469,495 km²). The United States' landscape is one of the most varied among those of the world's nations: among its many features are temperate forestland and rolling hills, on the east coast; mangrove, in Florida; the Great Plains, in the center of the country; the Mississippi–Missouri river system; the Great Lakes, four of the five of which are shared with Canada; the