Common Era (CE) and Before the Common Era (BCE) are year notations for the Gregorian calendar (and its predecessor, the Julian calendar), the world's most widely used calendar era. Common Era and Before the Common Era are alternatives to the original Anno Domini (AD) and Before Christ (BC) notations used for the same calendar era. The two notation systems are numerically equivalent: "2024 CE" and "AD 2024" each describe the current year; "400 BCE" and "400 BC" are the same year. [1] [2]
The expression can be traced back to 1615, when it first appears in a book by Johannes Kepler as the Latin : annus aerae nostrae vulgaris (year of our common era), [3] [4] and to 1635 in English as "Vulgar Era". [lower-alpha 1] The term "Common Era" can be found in English as early as 1708, [5] and became more widely used in the mid-19th century by Jewish religious scholars. Since the late 20th century, BCE and CE have become popular in academic and scientific publications on the grounds that BCE and CE are religiously neutral terms. [6] [lower-alpha 2] They have been promoted as more sensitive to non-Christians by not referring to Jesus, the central figure of Christianity, especially via the religious terms "Christ" and Dominus ("Lord") used by the other abbreviations. [7] [8] [lower-alpha 3] Nevertheless, its epoch remains the same as that used for the Anno Domini era.
The idea of numbering years beginning from the date that he believed to be the date of birth of Jesus, was conceived around the year 525 by the Christian monk Dionysius Exiguus. He did this to replace the then dominant Era of Martyrs system, because he did not wish to continue the memory of a tyrant who persecuted Christians. [10] : 50 He numbered years from an initial reference date ("epoch"), an event he referred to as the Incarnation of Jesus. [10] [11] [12] Dionysius labeled the column of the table in which he introduced the new era as "Anni Domini Nostri Jesu Christi" (Of the year of our Lord Jesus Christ]. [10] : 52
This way of numbering years became more widespread in Europe with its use by Bede in England in 731. Bede also introduced the practice of dating years before what he supposed was the year of birth of Jesus, [lower-alpha 4] without a year zero. [lower-alpha 5] In 1422, Portugal became the last Western European country to switch to the system begun by Dionysius. [14]
The term "Common Era" is traced back in English to its appearance as "Vulgar Era" to distinguish years of the Anno Domini era, which was in popular use, from dates of the regnal year (the year of the reign of a sovereign) typically used in national law. [16] (The word 'vulgar' originally meant 'of the ordinary people', with no derogatory associations. [17] )
The first use of the Latin term anno aerae nostrae vulgaris [lower-alpha 6] may be that in a 1615 book by Johannes Kepler. [4] Kepler uses it again, as ab Anno vulgaris aerae, in a 1616 table of ephemerides, [18] and again, as ab anno vulgaris aerae, in 1617. [19] A 1635 English edition of that book has the title page in English that may be the earliest-found use of Vulgar Era in English. [20] [lower-alpha 7] A 1701 book edited by John Le Clerc includes the phrase "Before Christ according to the Vulgar Æra, 6". [21]
The Merriam Webster Dictionary gives 1716 as the date of first use of the term "vulgar era" (which it defines as Christian era). [22] [lower-alpha 8]
The first published use of "Christian Era" may be the Latin phrase annus aerae christianae on the title page of a 1584 theology book, De Eucharistica controuersia. [24] In 1649, the Latin phrase annus æræ Christianæ appeared in the title of an English almanac. [25] A 1652 ephemeris may be the first instance found so far of the English use of "Christian Era". [26]
The English phrase "Common Era" appears at least as early as 1708, [5] and in a 1715 book on astronomy it is used interchangeably with "Christian Era" and "Vulgar Era". [27] A 1759 history book uses common æra in a generic sense, to refer to "the common era of the Jews". [28] The first use of the phrase "before the common era" may be that in a 1770 work that also uses common era and vulgar era as synonyms, in a translation of a book originally written in German. [29] The 1797 edition of the Encyclopædia Britannica uses the terms vulgar era and common era synonymously. [30] [31] In 1835, in his book Living Oracles , Alexander Campbell, wrote: "The vulgar Era, or Anno Domini; the fourth year of Jesus Christ, the first of which was but eight days", [32] and also refers to the common era as a synonym for vulgar era with "the fact that our Lord was born on the 4th year before the vulgar era, called Anno Domini, thus making (for example) the 42d year from his birth to correspond with the 38th of the common era". [33] The Catholic Encyclopedia (1909) in at least one article reports all three terms (Christian, Vulgar, Common Era) being commonly understood by the early 20th century. [34]
The phrase "common era", in lower case, also appeared in the 19th century in a "generic" sense, not necessarily to refer to the Christian Era, but to any system of dates in common use throughout a civilization. Thus, "the common era of the Jews", [35] [36] "the common era of the Mahometans", [37] "common era of the world", [38] "the common era of the foundation of Rome". [39] When it did refer to the Christian Era, it was sometimes qualified, e.g., "common era of the Incarnation", [40] "common era of the Nativity", [41] or "common era of the birth of Christ". [42]
An adapted translation of Common Era into Latin as Era Vulgaris [lower-alpha 9] was adopted in the 20th century by some followers of Aleister Crowley, and thus the abbreviation "e.v." or "EV" may sometimes be seen as a replacement for AD. [44]
Although Jews have their own Hebrew calendar, they often use the Gregorian calendar without the AD prefix. [45] As early as 1825, the abbreviation VE (for Vulgar Era) was in use among Jews to denote years in the Western calendar. [46] As of 2005 [update] , Common Era notation has also been in use for Hebrew lessons for more than a century. [47] Jews have also used the term Current Era. [48]
Some academics in the fields of theology, education, archaeology and history have adopted CE and BCE notation despite some disagreement. [49] A study conducted in 2014 found that the BCE/CE notation is not growing at the expense of BC and AD notation in the scholarly literature, and that both notations are used in a relatively stable fashion. [50]
In 2011, media reports suggested that the BC/AD notation in Australian school textbooks would be replaced by BCE/CE notation. [51] The change drew opposition from some politicians and church leaders. Weeks after the story broke, the Australian Curriculum, Assessment and Reporting Authority denied the rumours and stated that the BC/AD notation would remain, with CE and BCE as an optional suggested learning activity. [52]
In 2013, the Canadian Museum of Civilization (now the Canadian Museum of History) in Gatineau (opposite Ottawa), which had previously switched to BCE/CE, decided to change back to BC/AD in material intended for the public while retaining BCE/CE in academic content. [53]
The notation is in particularly common use in Nepal in order to disambiguate dates from the local calendar, Bikram or Vikram Sambat. Disambiguation is needed because the era of the local calendar is quite close to the Common Era.
In 2002, an advisory panel for the religious education syllabus for England and Wales recommended introducing BCE/CE dates to schools, [54] and by 2018 some local education authorities were using them. [55]
In 2018, the National Trust said it would continue to use BC/AD as its house style. [55] English Heritage explains its era policy thus: "It might seem strange to use a Christian calendar system when referring to British prehistory, but the BC/AD labels are widely used and understood." [56] Some parts of the BBC use BCE/CE, but some presenters have said they will not. [55] As of October 2019, the BBC News style guide has entries for AD and BC, but not for CE or BCE. [57] The style guide for The Guardian says, under the entry for CE/BCE: "some people prefer CE (common era, current era, or Christian era) and BCE (before common era, etc.) to AD and BC, which, however, remain our style". [58]
In the United States, the use of the BCE/CE notation in textbooks was reported in 2005 to be growing. [47] Some publications have transitioned to using it exclusively. For example, the 2007 World Almanac was the first edition to switch to BCE/CE, ending a period of 138 years in which the traditional BC/AD dating notation was used. BCE/CE is used by the College Board in its history tests, [59] and by the Norton Anthology of English Literature. Others have taken a different approach. The US-based History Channel uses BCE/CE notation in articles on non-Christian religious topics such as Jerusalem and Judaism. [60] The 2006 style guide for the Episcopal Diocese Maryland Church News says that BCE and CE should be used. [61]
In June 2006, in the United States, the Kentucky State School Board reversed its decision to use BCE and CE in the state's new Program of Studies, leaving education of students about these concepts a matter of local discretion. [62] [63] [64]
The use of CE in Jewish scholarship was historically motivated by the desire to avoid the implicit "Our Lord" in the abbreviation AD. [lower-alpha 3] Although other aspects of dating systems are based in Christian origins, AD is a direct reference to Jesus as Lord. [65] [66] [67] Proponents of the Common Era notation assert that the use of BCE/CE shows sensitivity to those who use the same year numbering system as the one that originated with and is currently used by Christians, but who are not themselves Christian. [68] Former United Nations Secretary-General Kofi Annan has argued: [69]
[T]he Christian calendar no longer belongs exclusively to Christians. People of all faiths have taken to using it simply as a matter of convenience. There is so much interaction between people of different faiths and cultures – different civilizations, if you like – that some shared way of reckoning time is a necessity. And so the Christian Era has become the Common Era. [70]
Adena K. Berkowitz, in her application to argue before the United States Supreme Court, opted to use BCE and CE because, "Given the multicultural society that we live in, the traditional Jewish designations –B.C.E. and C.E. – cast a wider net of inclusion." [71] In the World History Encyclopedia, Joshua J. Mark wrote "Non-Christian scholars, especially, embraced [CE and BCE] because they could now communicate more easily with the Christian community. Jewish, Islamic, Hindu and Buddhist scholars could retain their [own] calendar but refer to events using the Gregorian Calendar as BCE and CE without compromising their own beliefs about the divinity of Jesus of Nazareth." [72] In History Today , Michael Ostling wrote: "BC/AD Dating: In the year of whose Lord? The continuing use of AD and BC is not only factually wrong but also offensive to many who are not Christians." [67]
Critics note the fact that there is no difference in the epoch of the two systems—chosen to be close to the date of birth of Jesus. Since the year numbers are the same, BCE and CE dates should be equally offensive to other religions as BC and AD. [73] Roman Catholic priest and writer on interfaith issues Raimon Panikkar argued that the BCE/CE usage is the less inclusive option since they are still using the Christian calendar numbers and forcing it on other nations. [74] In 1993, the English-language expert Kenneth G. Wilson speculated a slippery slope scenario in his style guide that, "if we do end by casting aside the AD/BC convention, almost certainly some will argue that we ought to cast aside as well the conventional numbering system [that is, the method of numbering years] itself, given its Christian basis." [75]
Some Christians are offended by the removal of the reference to Jesus, [76] including the Southern Baptist Convention. [77]
The abbreviation BCE, just as with BC, always follows the year number. Unlike AD, which still often precedes the year number, CE always follows the year number (if context requires that it be written at all). [78] Thus, the current year is written as 2024 in both notations (or, if further clarity is needed, as 2024 CE, or as AD 2024), and the year that Socrates died is represented as 399 BCE (the same year that is represented by 399 BC in the BC/AD notation). The abbreviations are sometimes written with small capital letters, or with periods (e.g., "B.C.E." or "C.E."). [79] The US-based Society of Biblical Literature style guide for academic texts on religion prefers BCE/CE to BC/AD. [80]
The terms anno Domini (AD) and before Christ (BC) are used when designating years in the Gregorian and Julian calendars. The term anno Domini is Medieval Latin and means "in the year of the Lord" but is often presented using "our Lord" instead of "the Lord", taken from the full original phrase "anno Domini nostri Jesu Christi", which translates to "in the year of our Lord Jesus Christ". The form "BC" is specific to English, and equivalent abbreviations are used in other languages: the Latin form, rarely used in English, is ante Christum natum (ACN) or ante Christum (AC).
Astronomical year numbering is based on AD/CE year numbering, but follows normal decimal integer numbering more strictly. Thus, it has a year 0; the years before that are designated with negative numbers and the years after that are designated with positive numbers. Astronomers use the Julian calendar for years before 1582, including the year 0, and the Gregorian calendar for years after 1582, as exemplified by Jacques Cassini (1740), Simon Newcomb (1898) and Fred Espenak (2007).
Ab urbe condita, or anno urbis conditae, abbreviated as AUC or AVC, expresses a date in years since 753 BC, the traditional founding of Rome. It is an expression used in antiquity and by classical historians to refer to a given year in Ancient Rome. In reference to the traditional year of the foundation of Rome, the year 1 BC would be written AUC 753, whereas AD 1 would be AUC 754. The foundation of the Roman Empire in 27 BC would be AUC 727. The current year AD 2024 would be AUC 2777.
An era is a span of time defined for the purposes of chronology or historiography, as in the regnal eras in the history of a given monarchy, a calendar era used for a given calendar, or the geological eras defined for the history of Earth.
A year is the time taken for astronomical objects to complete one orbit. For example, a year on Earth is the time taken for Earth to revolve around the Sun. Generally, a year is taken to mean a calendar year, but the word is also used for periods loosely associated with the calendar or astronomical year, such as the seasonal year, the fiscal year, the academic year, etc. The term can also be used in reference to any long period or cycle, such as the Great Year.
AD 1 (I) or 1 CE was a common year starting on Saturday or Sunday, a common year starting on Saturday by the proleptic Julian calendar, and a common year starting on Monday by the proleptic Gregorian calendar. It is the epoch year for the Anno Domini (AD) Christian calendar era, and the 1st year of the 1st century and 1st millennium of the Christian or Common Era (CE).
The proleptic Julian calendar is produced by extending the Julian calendar backwards to dates preceding AD 8 when the quadrennial leap year stabilized. The leap years that were actually observed between the implementation of the Julian calendar in 45 BC and AD 8 were erratic.
Year 300 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Corvus and Pansa. The denomination 300 BC for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. B.C.E is the abbreviation for before the Common/Current/Christian Era.
Dionysius Exiguus was a 6th-century Eastern Roman monk born in Scythia Minor. He was a member of a community of Scythian monks concentrated in Tomis, the major city of Scythia Minor. Dionysius is best known as the inventor of Anno Domini (AD) dating, which is used to number the years of both the Gregorian calendar and the (Christianised) Julian calendar. Almost all churches adopted his computus for the dates of Easter.
The Thai solar calendar was adopted by King Chulalongkorn in 1888 CE as the Siamese version of the Gregorian calendar, replacing the Thai lunar calendar as the legal Thai calendar. Years are now counted in the Buddhist Era (B.E.): พุทธศักราช, พ.ศ.RTGS: Phutthasakkarat which is 543 years ahead of the Gregorian calendar.
A calendar era is the period of time elapsed since one epoch of a calendar and, if it exists, before the next one. For example, it is the year 2024 as per the Gregorian calendar, which numbers its years in the Western Christian era.
The Era of the Martyrs, also known as the Diocletian era, is a method of numbering years based on the reign of Roman Emperor Diocletian who instigated the last major persecution against Christians in the Empire. It was used by the Church of Alexandria beginning in the 4th century AD and it has been used by the Coptic Orthodox Church of Alexandria from the 5th century until the present. This era was used to number the year in Easter tables produced by the Church of Alexandria.
Anno Mundi, abbreviated as AM or A.M., or Year After Creation, is a calendar era based on the biblical accounts of the creation of the world and subsequent history. Two such calendar eras of notable use are:
The Seleucid era ("SE") or Anno Graecorum, sometimes denoted "AG," was a system of numbering years in use by the Seleucid Empire and other countries among the ancient Hellenistic civilizations, and later by the Parthians. It is sometimes referred to as "the dominion of the Seleucidæ," or the Year of Alexander. The era dates from Seleucus I Nicator's reconquest of Babylon in 312/11 BC after his exile in Ptolemaic Egypt, considered by Seleucus and his court to mark the founding of the Seleucid Empire. According to Jewish tradition, it was during the sixth year of Alexander the Great's reign that they began to make use of this counting. The introduction of the new era is mentioned in one of the Babylonian Chronicles, The Chronicle of the Diadochi.
The term ante Christum natum, usually abbreviated to a. Chr. n., a.Ch.n., a.C.n., A.C.N., or ACN, denotes the years before the birth of Jesus Christ. It is a Latin equivalent to the English "BC". The phrase ante Christum natum is also seen shortened to ante Christum, similarly abbreviated to a. Chr., A. C. or AC. A related phrase, p. Chr. n., p. Ch. n., P.C.M, PCN, or post Christum natum complements a. Ch. n. and is equivalent to Anno Domini (AD).
The Holocene calendar, also known as the Holocene Era or Human Era (HE), is a year numbering system that adds exactly 10,000 years to the currently dominant numbering scheme, placing its first year near the beginning of the Holocene geological epoch and the Neolithic Revolution, when humans shifted from a hunter-gatherer lifestyle to agriculture and fixed settlements. The current year by the Gregorian calendar, AD 2024, is 12024 HE in the Holocene calendar. The HE scheme was first proposed by Cesare Emiliani in 1993, though similar proposals to start a new calendar at the same date had been put forward decades earlier.
A year zero does not exist in the Anno Domini (AD) calendar year system commonly used to number years in the Gregorian calendar ; in this system, the year 1 BC is followed directly by year AD 1. However, there is a year zero in both the astronomical year numbering system, and the ISO 8601:2004 system, the interchange standard for all calendar numbering systems. There is also a year zero in most Buddhist and Hindu calendars.
The Spanish era, sometimes called the era of Caesar, was a calendar era commonly used in the states of the Iberian Peninsula from the 5th century until the 15th, when it was phased out in favour of the Anno Domini (AD) system. The epoch of the Spanish era was 1 January 38 BC. To convert an Anno Domini date to the corresponding year in the Spanish era, add 38 to the Anno Domini year, such that Era 941 would be equivalent to AD 903. A date given in the Spanish era always uses the word era followed by a feminine ordinal number. This contrasts with the AD system that uses the masculine anno (year): i.e., era millesima octava versus anno millesimo octavo.
The Sardica paschal table or Sardica document is a document from a Latin manuscript of the 7th/8th century AD. It is a copy in Latin translation of the creed of the Eastern Christian bishops attending the Council of Sardica who, fearing that their deliberations would be dominated by Western bishops, met separately at Philippopolis. Appended to the creed and anathemas is a table of Paschal full moon dates, given as dates in the Julian calendar, for the years 328 to 357, together with a list of dates of 14 Nisan in the Jewish calendar, also referred to the Julian calendar, for the years 328 to 343, the year of the Council. The calendrical information contained in the document has been used by scholars in tracing the history of the computus and of the Hebrew calendar.
The date of the birth of Jesus is not stated in the gospels or in any historical sources and the evidence is too incomplete to allow for consistent dating. However, most biblical scholars and ancient historians believe that his birth date is around 4 to 6 BC. Two main approaches have been used to estimate the year of the birth of Jesus: one based on the accounts in the Gospels of his birth with reference to King Herod's reign, and the other by subtracting his stated age of "about 30 years" when he began preaching.
Etymology: Medieval Latin, in the year of the Lord
Dabam Pragae Idibus Aprilibus, Anno vulgaris aerae MDCXII(Earliest-found use of "vulgaris aerae", Latin for Common Era) (1615)
... to the fourth century of the Common Era(Possibly the first use of common era in English (1708))
The changes – showing up at museums, in academic circles and in school textbooks – have been touted as more sensitive to people of faiths outside of Christianity. ... The use of BCE and CE have rankled some Christians
The influence of western culture and scholarship upon the rest of the world in turn led to this system of dating becoming the most widely used one across the globe today. Many scholars in historical and religious studies in the West in recent years have sought to lessen the explicitly Christian meaning of this system without abandoning the usefulness of a single, common, global form of dating. For this reason the terms common era and before the common era, abbreviated as CE and BCE, have grown in popularity as designations. The terms are meant, in deference to non-Christians, to soften the explicit theological claims made by the older Latin terminology, while at the same time providing continuity with earlier generations of mostly western Christian historical research
Part 3 has title: Tomi L Ephemeridvm Ioannis Kepleri pars tertia, complexa annos à M.DC.XXIX. in M.DC.XXXVI. In quibus & tabb. Rudolphi jam perfectis, et sociâ operâ clariss. viri dn. Iacobi Bartschii ... Impressa Sagani Silesiorvm, in typographeio Ducali, svmptibvs avthoris, anno M.DC.XXX.(His third use of "vulgaris aerae" (Latin for Common Era) (1617))
Before Christ according to the Vulgar Æra, 6
... the expression "Christian era" appears in Latin in a 1584 theology book (Grynaeus and Beumler 1584)
anni æræ Christianæ, 1649
Some say the World was created 3950 Years before the common Æra of ChristBefore Christ and Christian Era appear on the same page 252, while Vulgar Era appears on page 250
And it doth not appear, that they began to reckon from the creation till after their Gemarrah was finished;at which time they fixed that for their common era[In this case, their refers to the Jews.]
The Spanish era began with the year of the world 3966, and 38 years before the common era (p63); 1796 years before the common era [...] 776 before the vulgar era. (p105)[Possibly the first English use of "before the common era", with "vulgar era" synonymous with "common era" (1770)]
St Peter died in the 66th year of the vulgar era
This happened in the 33rd year of the common era, some time after our Saviour's death.
Foremost among these [various eras] is that which is now adopted by all civilized peoples and known as the Christian, Vulgar or Common Era, in the twentieth century of which we are now living.
the common era of the Jews places the creation in BC 3760
Hence the present year, 1858, in the common era of the Jews, is AM 5618–5619, a difference of more than 200 years from our commonly-received chronology.
Its epoch is the first of March old style. The common era of the Mahometans, as has already been stated, is that of the flight of Mahomet.
It should be observed, however, that these years correspond to 492 and 493, a portion of the annals of Ulster being counted from the Incarnation, and being, therefore, one year before the common era of the Nativity of our Lord.
Jews do not generally use the words 'A.D.' and 'B.C.' to refer to the years on the Gregorian calendar. 'A.D.' means 'the year of our L-rd,' and we do not believe Jesus is the L-rd. Instead, we use the abbreviations C.E. (Common or Christian Era) and B.C.E. (Before the Common Era).
Here is buried his honour Judah ben his honour Joseph, a prince and honoured amongst philanthropists, who executed good deeds, died in his house in the City of Bath, Tuesday, and was buried here on Sunday, 19 Sivan in the year 5585. In memory of Lyon Joseph Esq (merchant of Falmouth, Cornwall). who died at Bath June AM 5585/VE 1825. Beloved and respected.[19 Sivan 5585 AM is 5 June 1825. VE is likely an abbreviation for Vulgar Era.]
It has been said of the Latin words anno Domini, meaning in the year of our Lord ...
Marked by the turn of the Common Era, C.E., originally referred to as A.D., an abbreviation of the Latin Anno Domini, meaning 'Year of our God/Lord.' This was a shortening of Anno Domini Nostri Jesu Christi, meaning 'Year of our God/Lord Jesus Christ.'
To call our age 'the Common Era,' even though for the Jews, the Chinese, the Tamil, the Muslims, and many others it is not a common era, constitutes the acme of colonialism.
A.D. appears either before or after the number of the year ... although conservative use has long preferred before only; B.C. always follows the number of the year. ... Common era (C.E.) itself needs a good deal of further justification, in view of its clearly Christian numbering. Most conservatives still prefer A.D. and B.C. Best advice: don't use B.C.E., C.E., or A.C.E. to replace B.C. and A.D. without translating the new terms for the very large number of readers who will not understand them. Note too that if we do end by casting aside the A.D./B.C. convention, almost certainly some will argue that we ought to cast aside as well the conventional numbering system itself, given its Christian basis.
'I find this attempt to restructure history offensive,' Lori Weintz wrote, in a letter to National Geographic publishers. ... 'The forward to your book says B.C. and A.D. were removed so as to "not impose the standards of one culture on others." ... It's 2006 this year for anyone on Earth that is participating in day-to-day world commerce and communication. Two thousand six years since what? Most people know, regardless of their belief system, and aren't offended by a historical fact.'
This practice [of BCE/CE] is the result of the secularization, anti-supernaturalism, religious pluralism, and political correctness pervasive in our society ... retention [of BC/AD] is a reminder to those in this secular age of the importance of Christ's life and mission and emphasizes to all that history is ultimately His Story.
Certain abbreviations traditionally set in small caps are now in full caps (AD, BCE, and the like), with small caps an option.
Although A.D. (Anno Domini, meaning 'in the year of our Lord') and B.C. (before Christ) are used in lands where professed Christianity predominates, we have chosen to use the terms C.E. (Common Era) and B.C.E. (Before the Common Era).