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. (The word 'vulgar' originally meant 'of the ordinary people', with no derogatory associations.)
The English phrase "Common Era" appears at least as early as 1708, and in a 1715 book on astronomy, it is used interchangeably with "Christian Era" and "Vulgar Era". A 1759 history book uses common æra in a generic sense to refer to "the common era of the Jews". The phrase "before the common era" may have first appeared in a 1770 work that also uses common era and vulgar era as synonyms in a translation of a book originally written in German. The 1797 edition of the Encyclopædia Britannica uses the terms vulgar era and common era synonymously.
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". He refers to the common era as a synonym for vulgar era: "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". 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.
In 2011, media reports suggested that the BC/AD notation in Australian school textbooks would be replaced by BCE/CE notation. 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.
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.
The use of CE in Jewish scholarship was historically motivated by the desire to avoid the implicit "Our Lord" in the abbreviation AD. Although other aspects of dating systems are based in Christian origins, AD is a direct reference to Jesus as Lord. 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. Former United Nations Secretary-General Kofi Annan has argued:
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). Thus, the current year is written as 2025 in both notations (or, if further clarity is needed, as 2025 CE, or as AD 2025), 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."). The US-based Society of Biblical Literature style guide for academic texts on religion prefers BCE/CE to BC/AD.
"Anno Domini". Merriam Webster Online Dictionary. Merriam-Webster. 2003. Retrieved 4 October 2011. Etymology: Medieval Latin, in the year of the Lord http://www.m-w.com/dictionary/Anno%20Domini
"Controversy over the use of the "CE/BCE" and "AD/BC" dating notation/". Ontario Consultants on Religious Tolerance. Retrieved 12 November 2011. http://www.religioustolerance.org/ce.htm
Coolman, Robert. "Keeping Time: The Origin of B.C. & A.D." Live Science. Retrieved 11 November 2017. https://www.livescience.com/45510-anno-domini.html
Johannes Kepler (1615). Joannis Keppleri Eclogae chronicae: (etc) (in Latin). Frankfurt: Tampach. OCLC 62188677. Dabam Pragae Idibus Aprilibus, Anno vulgaris aerae MDCXII (Earliest-found use of "vulgaris aerae", Latin for Common Era) (1615) /wiki/Johannes_Kepler
From the Latin word vulgus, the common people – to contrast it with the regnal year system of dating used by the government. https://en.wiktionary.org/wiki/vulgus
The History of the Works of the Learned. Vol. 10. London. January 1708. p. 513. ... to the fourth century of the Common Era (Possibly the first use of common era in English (1708)) https://archive.org/details/sim_history-of-the-works-of-the-learned_1708-09_10_9/page/n10/mode/1up
Espenak, Fred (25 February 2008). "Year dating conventions". NASA. Retrieved 24 August 2021. https://eclipse.gsfc.nasa.gov/SEhelp/dates.html
Two other systems that also do not use religious titles, the astronomical system and the ISO 8601 standard, do use a year zero. The year 1 BCE (identical to the year 1 BC) is represented as 0 in the astronomical system, and as 0000 in ISO 8601. Presently, ISO 8601 dating requires use of the Gregorian calendar for all dates, however, whereas astronomical dating and Common Era dating allow use of either the Gregorian or Julian calendars. /wiki/Astronomical_year_numbering
Herrmann, Andrew (27 May 2006). "BCE date designation called more sensitive". Chicago Sun-Times. Archived from the original on 10 August 2017. Retrieved 18 September 2016. 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 https://web.archive.org/web/20170810211537/https://www.highbeam.com/doc/1P2-1620546.html
McKim, Donald K (1996). "C. E.". Westminster dictionary of theological terms. Westminster John Knox Press. p. 41. ISBN 978-0-664-25511-4. 978-0-664-25511-4
AD is shortened from anno Domini nostri Jesu Christi ("in the year of Our Lord Jesus Christ").[9]
Pedersen, O. (1983). "The Ecclesiastical Calendar and the Life of the Church". In Coyne, G.V.; et al. (eds.). Gregorian Reform of the Calendar: Proceedings of the Vatican Conference to commemorate its 400th anniversary. Vatican Observatory. p. 50. Retrieved 18 May 2011 – via SAO/NASA Astrophysics Data System (ADS). https://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?journal=grc..&year=1983&volume=book&letter=.&db_key=PRE&page_ind=34&plate_select=NO&data_type=GIF&type=SCREEN_GIF&classic=YES
Doggett, L.E., (1992), "Calendars" in Seidelmann, P.K., The Explanatory Supplement to the Astronomical Almanac, Sausalito CA: University Science Books, 2.1 https://eclipse.gsfc.nasa.gov/SEhelp/calendars.html
Bromiley, Geoffrey W. (1995). The International Standard Bible Encyclopedia. Wm. B. Eerdmans Publishing. p. 686. ISBN 978-0-8028-3781-3. 978-0-8028-3781-3
Pedersen, O. (1983). "The Ecclesiastical Calendar and the Life of the Church". In Coyne, G.V.; et al. (eds.). Gregorian Reform of the Calendar: Proceedings of the Vatican Conference to commemorate its 400th anniversary. Vatican Observatory. p. 50. Retrieved 18 May 2011 – via SAO/NASA Astrophysics Data System (ADS). https://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?journal=grc..&year=1983&volume=book&letter=.&db_key=PRE&page_ind=34&plate_select=NO&data_type=GIF&type=SCREEN_GIF&classic=YES
Pedersen, O. (1983). "The Ecclesiastical Calendar and the Life of the Church". In Coyne, G.V.; et al. (eds.). Gregorian Reform of the Calendar: Proceedings of the Vatican Conference to commemorate its 400th anniversary. Vatican Observatory. p. 50. Retrieved 18 May 2011 – via SAO/NASA Astrophysics Data System (ADS). https://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?journal=grc..&year=1983&volume=book&letter=.&db_key=PRE&page_ind=34&plate_select=NO&data_type=GIF&type=SCREEN_GIF&classic=YES
Bede wrote of the Incarnation of Jesus, but treated it as synonymous with birth.[13]
As noted in History of the zero, the use of zero in Western civilization was uncommon before the twelfth century. /wiki/History_of_zero
Weatherall, Claire (18 May 2023). "Library: Archival Skills: Historical dates". University of Hull. Retrieved 21 September 2024. https://libguides.hull.ac.uk/archival-skills/historical-dates
"Vulgar". Oxford English Dictionary. Vol. 12. 1933. p. 326. https://archive.org/details/the-oxford-english-dictionary-1933-all-volumes/The%20Oxford%20English%20Dictionary%20Volume%2012%20-%20Variant/page/n329/mode/1up?
In Latin, 'Common Era' is written as Aera Vulgaris. It also occasionally appears, in Latin declination, as æræ vulgaris, aerae vulgaris, aeram vulgarem, anni vulgaris, vulgaris aerae Christianae, and anni vulgatae nostrae aerae Christianas.
Johannes Kepler (1615). Joannis Keppleri Eclogae chronicae: (etc) (in Latin). Frankfurt: Tampach. OCLC 62188677. Dabam Pragae Idibus Aprilibus, Anno vulgaris aerae MDCXII (Earliest-found use of "vulgaris aerae", Latin for Common Era) (1615) /wiki/Johannes_Kepler
Kepler, Johann (1616). Ephemerides novae motuum caelestium, ab Ānno vulgaris aerae MDCXVII en observationibus potissimum Tychonis Brahei hypothesibus physicis, et tabulis Rudolphinis... Plancus.
Keppler, Johannes; Bartsch, Jakob (1617). Ephemerides novae motuum coelestium, ab anno vulgaris aerae MDCXVII[-XXXVI]... [(per 1635 English edition): New Ephemerids for the Celestiall Motions, for the Yeeres of the Vulgar Era 1617–1636]. Johannes Plancus. 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)) /wiki/Johannes_Kepler
Johann Kepler; Adriaan Vlacq (1635). Ephemerides of the Celestiall Motions, for the Yeers of the Vulgar Era 1633 ...
As England did not adopt the Gregorian calendar until 1752, "vulgar" dates were determined according to the Julian calendar. /wiki/Calendar_(New_Style)_Act_1750
Le Clerc, John, ed. (1701). The Harmony of the Evangelists. London: Sam Buckley. p. 5. Before Christ according to the Vulgar Æra, 6 https://books.google.com/books?id=jakGAAAAQAAJ&q=%22vulgar+era%22&pg=PA5-IA4
"Merriam Webster Online entry for Vulgar Era". Retrieved 18 May 2011. http://www.merriam-webster.com/dictionary/vulgarera
The probable source is a 1716 book in English by Dean Humphrey Prideaux which refers to, "...the vulgar Æra of Christ's incarnation and not from the true time of it."[22] This citation is given in the 1933 edition of Oxford English Dictionary but without any assertion of first use.[16] /wiki/Humphrey_Prideaux
Clivaz, Claire (2012). "Common Era 2.0". Lire demain; Reading tomorrow. EPFL Press. p. 38. ISBN 9782889141494. ... the expression "Christian era" appears in Latin in a 1584 theology book (Grynaeus and Beumler 1584) 9782889141494
WING, Vincent (1649). Speculum uranicum, anni æræ Christianæ, 1649, or, An almanack and prognosication for the year of our Lord, 1649 being the first from bissextile or leap-year, and from the creation of the world 5598, wherein is contained many useful, pleasant and necessary observations, and predictions ... : calculated (according to art) for the meridian and latitude of the ancient borough town of Stamford in Lincolnshire ... and without sensible errour may serve the 3. kingdoms of England, Scotland, and Ireland. London: J.L. for the Company of Stationers. anni æræ Christianæ, 1649
Sliter, Robert (1652). A celestiall glasse, or, Ephemeris for the year of the Christian era 1652 being the bissextile or leap-year: contayning the lunations, planetary motions, configurations & ecclipses for this present year ... : with many other things very delightfull and necessary for most sorts of men: calculated exactly and composed for ... Rochester. London: Printed for the Company of Stationers.
The History of the Works of the Learned. Vol. 10. London. January 1708. p. 513. ... to the fourth century of the Common Era (Possibly the first use of common era in English (1708)) https://archive.org/details/sim_history-of-the-works-of-the-learned_1708-09_10_9/page/n10/mode/1up
Gregory, David; John Nicholson; John Morphew (1715). The Elements of Astronomy, Physical and Geometrical. Vol. 1. London: J. Nicholson. p. 252. Some say the World was created 3950 Years before the common Æra of Christ Before Christ and Christian Era appear on the same page 252, while Vulgar Era appears on page 250 /wiki/John_Morphew
Sale, George; Psalmanazar, George; Bower, Archibald; Shelvocke, George; Campbell, John; Swinton, John (1759). An Universal History: From the Earliest Accounts to the Present Time. Vol. 13. London: C. Bathurst [etc.] p. 130. 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.] /wiki/George_Sale
Hooper, William; Bielfeld, Jacob Friedrich (1770). The Elements of Universal Erudition: Containing an Analytical Abridgment of the Sciences, Polite Arts, and Belles Lettres. Vol. 3. London: J Robson and B. Law. pp. 63, 105. 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)] https://archive.org/details/elementsofuniver03bieluoft/page/63/mode/1up
MacFarquhar, Colin; Gleig, George (1797). "Peter". Encyclopædia Britannica. A. Bell and C. Macfarquhar. p. 228. St Peter died in the 66th year of the vulgar era https://books.google.com/books?id=W3xMAAAAMAAJ&q=%22vulgar+era%22&pg=RA1-PA228
MacFarquhar, Colin; Gleig, George (1797). "Paul". Encyclopædia Britannica. A. Bell and C. Macfarquhar. p. 50. This happened in the 33rd year of the common era, some time after our Saviour's death. https://books.google.com/books?id=W3xMAAAAMAAJ&q=%22common+era%22&pg=PA50
Alexander Campbell (1835). The Living Oracles, Fourth Edition. pp. 16–20. Retrieved 18 May 2011. /wiki/Alexander_Campbell_(Restoration_movement)
Alexander Campbell (1835). The Living Oracles, Fourth Edition. pp. 15–16. Retrieved 18 May 2011. /wiki/Alexander_Campbell_(Restoration_movement)
"General Chronology". Catholic Encyclopedia. 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. http://www.newadvent.org/cathen/03738a.htm#christian
A. Whitelaw, ed. (1874). "Epoch". Popular Encyclopedia or Conversations Lexicon. Vol. V. Oxford University Press. p. 207. the common era of the Jews places the creation in BC 3760 /wiki/Alexander_Whitelaw_(editor)
The first and second Advent: or, The past and the future with reference to the Jew, the gentile, and the Church of God. Wertheim, MacIntosh & Hunt. 1858. p. 176. 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. https://books.google.com/books?id=e6oCAAAAQAAJ&q=%22common+era+of+the+jews%22&pg=PA176
Gumpach, Johannes von (1856). Practical tables for the reduction of Mahometan dates to the Christian calendar. Oxford University Press. p. 4. 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. https://archive.org/details/cu31924084318892/page/n7/mode/1up
Jones, William (1801). The Theological, Philosophical and Miscellaneous Works of the Rev. William Jones. London: Rivington. p. 354. https://archive.org/details/theologicalphil09jonegoog
Alexander Fraser Tytler (1854). Universal History: From the Creation of the World to the Beginning of the Eighteenth Century. Boston: Fetridge and Company. p. 284. /wiki/Alexander_Fraser_Tytler
Baynes, Thomas Spencer (1833). The Encyclopædia Britannica: A Dictionary of Arts, Sciences, and General Literature. Vol. V (9 ed.). New York: Henry G. Allen and Company. p. 711. https://books.google.com/books?id=HKgMAAAAYAAJ&q=%22common+era+of+the+incarnation%22&pg=PA711
Todd, James Henthorn (1864). St. Patrick, Apostle of Ireland, A Memoir of his Life and Mission. Dublin: Hodges, Smith & Co. pp. [1]–497. 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. /wiki/James_Henthorn_Todd
Heneage Elsley (1812). Annotations on the Four Gospels and the Acts of the Apostles (2nd ed.). London: T. Payne. xvi. https://books.google.com/books?id=PGdCAAAAIAAJ&q=%22common+era+of+the%22&pg=PR16
era – or, with a macron, ēra – being an alternative form of aera; aera is the usual form[42] /wiki/Macron_(diacritic)
Kaczynski, Richard (1 April 2009). The Weiser Concise Guide to Aleister Crowley. Weiser Books. p. 48. https://books.google.com/books?id=1adnRtKaWakC&pg=PA48
Tracey R Rich. "Jewish Calendar". Judaism 101. Retrieved 18 May 2011. 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). http://www.jewfaq.org/calendar.htm#Years
Susser, Bernard, ed. (2003). "Plymouth Hoe Old Jewish Cemetery Tombstone Inscriptions 3". Jewish Communities & Records, Susser Archive. Retrieved 18 May 2011. 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.] http://www.jewishgen.org/jcr-uk/susser/plymouthinscriptions.htm
Gormley, Michael (24 April 2005). "Use of B.C. and A.D. faces changing times". Houston Chronicle. p. A–13. Retrieved 18 May 2011. https://www.chron.com/news/nation-world/article/Use-of-B-C-and-A-D-faces-changing-times-1643198.php
BBC Team (8 February 2005). "History of Judaism 63 BCE – 1086 CE". BBC Religion & Ethics. British Broadcasting Corporation. Retrieved 20 April 2016. https://www.bbc.co.uk/religion/religions/judaism/history/history_1.shtml#section_2
See, for example, the Society for Historical Archaeology states in its more recent style guide "Do not use CE (common era), BP (before present), or BCE; convert these expressions to AD and BC." (In section I 5 the Society explains how to use "years BP" in connection with radiocarbon ages.) Society for Historical Archaeology (December 2006). "Style Guide" (PDF). Archived (PDF) from the original on 19 April 2016. Retrieved 16 January 2017. whereas the American Anthropological Association style guide takes a different approach, supporting the use of "CE" and "BCE." American Anthropological Society (2009). "AAA Style Guide" (PDF). p. 3. Retrieved 26 May 2015. /wiki/Radiocarbon_dating
Cavacini, A. (2015). "Is the CE/BCE notation becoming a standard in scholarly literature?". Scientometrics. 102 (2): 1661–1668. doi:10.1007/s11192-014-1352-1. S2CID 255011561. https://doi.org/10.1007/s11192-014-1352-1
Malkin, Bonnie (2 September 2011). "Anger in Australia as school books 'write Christ out of history'". The Telegraph. London. ISSN 0307-1235. Retrieved 1 January 2020. https://www.telegraph.co.uk/news/worldnews/australiaandthepacific/australia/8736932/Anger-in-Australia-as-school-books-write-Christ-out-of-history.html
"AD/BC rock solid in curriculum". The Age. Melbourne. 21 October 2011. Retrieved 4 March 2012. http://www.theage.com.au/national/adbc-rock-solid-in-curriculum-20111020-1mab2.html
"Museum of Civilization putting the 'Christ' back in history as BC and AD return", by Sean Kilpatrick/The Canadian Press, National Post, 27 February 2013 https://nationalpost.com/holy-post/museum-of-civilization-putting-the-christ-back-in-history-as-bc-and-ad-return
"AD and BC become CE/BCE". This is London. 9 February 2002. Archived from the original on 20 December 2011. Retrieved 5 February 2012. https://web.archive.org/web/20111220120909/http://www.thisislondon.co.uk/news/article-531644-ad-and-bc-become-cebce.do
"National Trust tells properties to stop dropping BC and AD out of fear it might offend non-Christians", The Daily Telegraph, by Henry Bodkin, 12 November 2018 https://www.telegraph.co.uk/news/2018/11/12/national-trust-tells-properties-stick-anno-domini-historic-site/
"National Trust tells properties to stop dropping BC and AD out of fear it might offend non-Christians", The Daily Telegraph, by Henry Bodkin, 12 November 2018 https://www.telegraph.co.uk/news/2018/11/12/national-trust-tells-properties-stick-anno-domini-historic-site/
Stonehenge glossary, "BC and AD" English Heritage https://www.english-heritage.org.uk/visit/places/stonehenge/history-and-stories/history/stonehenge-glossary/
"National Trust tells properties to stop dropping BC and AD out of fear it might offend non-Christians", The Daily Telegraph, by Henry Bodkin, 12 November 2018 https://www.telegraph.co.uk/news/2018/11/12/national-trust-tells-properties-stick-anno-domini-historic-site/
"BBC News style guide". BBC. Retrieved 11 October 2019. https://www.bbc.co.uk/academy/en/collections/news-style-guide
"Guardian style guide". Guardian. Retrieved 5 October 2019. https://www.theguardian.com/guardian-observer-style-guide-c
Gormley, Michael (24 April 2005). "Use of B.C. and A.D. faces changing times". Houston Chronicle. p. A–13. Retrieved 18 May 2011. https://www.chron.com/news/nation-world/article/Use-of-B-C-and-A-D-faces-changing-times-1643198.php
"AP: World History". Archived from the original on 5 May 2011. Retrieved 18 May 2011. https://web.archive.org/web/20110505010633/http://www.collegeboard.com/student/testing/ap/history_world/topic.html?worldhist
"Jerusalem Timeline". History Channel. Archived from the original on 20 May 2011. Retrieved 18 May 2011.;"Jerusalem: Biographies". History Channel. Archived from the original on 20 May 2011. Retrieved 18 May 2011. https://web.archive.org/web/20110520111303/http://www.history.com/topics/jerusalem
"Maryland Church News Submission Guide & Style Manual" (PDF). Maryland Church News. 1 April 2005. Archived from the original (PDF) on 20 June 2006. Retrieved 18 May 2011. https://web.archive.org/web/20060620230309/http://ang-md.org/mcn/style_guide.pdf
"State School Board reverses itself on B.C./A.D. controversy". Family Foundation of Kentucky. Archived from the original on 27 April 2011. Retrieved 18 May 2011. https://web.archive.org/web/20110427032052/http://www.tffky.org/articles/Press%20Releases/prs%2006-14-06%20MC.html
Joe Biesk (15 June 2006). "School board keeps traditional historic designations". Louisville Courier-Journal. Archived from the original on 10 July 2009. Retrieved 18 May 2011. https://web.archive.org/web/20090710123618/http://legacy.kctcs.edu/todaysnews/index.cfm?tn_date=2006-06-16#5119
"Kentucky Board of Education Report" (PDF). Kentucky Board of Education Report. 10 June 2006. Archived from the original (PDF) on 26 September 2006. Retrieved 18 May 2011. https://web.archive.org/web/20060926165947/http://cpe.ky.gov/NR/rdonlyres/5F08162C-899F-47FE-9367-1DDD82DE74E6/0/6_CommissionerofEdReport.pdf
AD is shortened from anno Domini nostri Jesu Christi ("in the year of Our Lord Jesus Christ").[9]
The American and English Encyclopedia of Law and Practice. 1910. p. 1116. It has been said of the Latin words anno Domini, meaning in the year of our Lord ...
Michael McDowell; Nathan Robert Brown (2009). World Religions At Your Fingertips. Penguin. p. 38. ISBN 978-1-101-01469-1. 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.' 978-1-101-01469-1
Ostling, Michael (October 2009). "BC/AD Dating: In the year of whose Lord?". History Today. Vol. 59, no. 10. Retrieved 10 March 2023. https://www.historytoday.com/archive/bcad-dating-year-whose-lord
"Comments on the use of CE and BCE to identify dates in history". ReligiousTolerance.com. Retrieved 18 May 2011. http://www.religioustolerance.org/ceintro.htm
Lefevere, Patricia (11 December 1998). "Annan: 'Peace is never a perfect achievement' – United Nations Secretary General Kofi Annan". National Catholic Reporter. Archived from the original on 13 July 2012. Retrieved 26 February 2008. https://archive.today/20120713031248/http://findarticles.com/p/articles/mi_m1141/is_7_35/ai_53460476/
Annan, Kofi A. (28 June 1999). "Common values for a common era: Even as we cherish our diversity, we need to discover our shared values". Civilization: The Magazine of the Library of Congress. Archived from the original on 1 May 2011. Retrieved 18 May 2011. /wiki/Kofi_Annan
Safire, William (17 August 1997). "B.C./A.D. or B.C.E./C.E.?". New York Times. Archived from the original on 14 August 2018. https://web.archive.org/web/20180814202630/http://www.nytimes.com/1997/08/17/magazine/bc-ad-or-bce-ce.html
Mark, Joshua J. (27 March 2017). "The Origin & History of the BCE/CE Dating System.". World History Encyclopedia. Retrieved 8 August 2022. https://www.worldhistory.org/article/1041/the-origin--history-of-the-bcece-dating-system/
Ostling, Michael (October 2009). "BC/AD Dating: In the year of whose Lord?". History Today. Vol. 59, no. 10. Retrieved 10 March 2023. https://www.historytoday.com/archive/bcad-dating-year-whose-lord
Pollick, Michael (23 May 2024). "What is the Difference Between AD, BC, BCE, and CE in Identifying Historical Dates?". Historical Index. Retrieved 21 August 2024. http://www.historicalindex.org/what-is-the-difference-between-ad-bc-bce-and-ce-in-identifying-historical-dates.htm
Panikkar, Raimon (2004). Christophany: The Fullness of Man. Maryville, NY: Orbis Books. p. 173. ISBN 978-1-57075-564-4. 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. 978-1-57075-564-4
Wilson, Kenneth G. (16 December 1993). The Columbia Guide to Standard American English – A.D., B.C., (A.)C.E., B.C.E. Columbia University Press. ISBN 978-0-231-06989-2. 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. 978-0-231-06989-2
Whitney, Susan (2 December 2006). "Altering history? Changes have some asking 'Before what?'". The Deseret News. Archived from the original on 12 October 2007. Retrieved 18 May 2011. '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.' https://web.archive.org/web/20071012132926/http://findarticles.com/p/articles/mi_qn4188/is_20061202/ai_n16891064
"On Retaining The Traditional Method Of Calendar Dating (B.C./A.D.)". Southern Baptist Convention. June 2000. Retrieved 18 May 2011. 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. https://www.sbc.net/resource-library/resolutions/on-retaining-the-traditional-method-of-calendar-dating-b-c-a-d/
Chicago Manual of Style (17th ed.). University of Chicago Press. 2017. ¶ 9.34. ISBN 978-0-226-28705-8. 978-0-226-28705-8
"Major Rule Changes in The Chicago Manual of Style, Fifteenth Edition". University of Chicago Press. 2003. Archived from the original on 9 September 2007. Retrieved 26 May 2015. Certain abbreviations traditionally set in small caps are now in full caps (AD, BCE, and the like), with small caps an option. https://web.archive.org/web/20070909071543/http://www.chicagomanualofstyle.org/about15_rules.html
SBL Handbook of Style Society of Biblical Literature 1999 "8.1.2 ERAS – The preferred style is B.C.E. and C.E. (with periods). If you use A.D. and B.C., remember that A.D. precedes the date and B.C. follows it. (For the use of these abbreviations in titles, see § 7.1.3.2.)" /wiki/Society_of_Biblical_Literature
"GERMANY: Jewish Joke". Time. 7 March 1938. Archived from the original on 17 July 2010. Retrieved 5 February 2012. https://web.archive.org/web/20100717061654/http://www.time.com/time/magazine/article/0,9171,759195,00.html
Allgemeine Zeitung des Judenthums. Ein unpartheiisches Organ für alles jüdische Interesse, II. Jahrgang, No. 60, Leipzig, 19. Mai 1838 (19 May 1838). See page 175 in Allgemeine Zeitung des Judenthums: Ein unpartheiisches Organ für alles jüdische Interesse in Betreff von Politik, Religion, Literatur, Geschichte, Sprachkunde und Belletristik, Volume 2 (Leipzig 1838). https://books.google.com/books?id=pwxFAAAAcAAJ
Julius Fürst, Geschichte des Karäerthums von 900 bis 1575 der gewöhnlichen Zeitrechnung (Leipzig 1862–1869). /wiki/Julius_F%C3%BCrst
von und zu Guttenberg, Karl Ludwig Freiherr (May 1938). "Weiße Blätter: Monatschrift für Geschichte, Tradition u. Staat" (PDF). p. 149. Archived from the original (PDF) on 19 January 2012. Retrieved 15 April 2018. /wiki/Karl_Ludwig_Freiherr_von_und_zu_Guttenberg
"GERMANY: Jewish Joke". Time. 7 March 1938. Archived from the original on 17 July 2010. Retrieved 5 February 2012. https://web.archive.org/web/20100717061654/http://www.time.com/time/magazine/article/0,9171,759195,00.html
Ortografía de la lengua española (in Spanish) (online ed.). Real Academia Española y Asociación de Academias de la Lengua Española. 2010. p. 695. http://aplica.rae.es/orweb/cgi-bin/z.cgi?t=4852746440070813319661357&s=2
"Writing Dates in Spanish". Archived from the original on 11 November 2011. Retrieved 5 February 2012. https://web.archive.org/web/20111111060109/http://spanish.about.com/od/writtenspanish/qt/dates.htm
"Jazyková příručka Ústavu pro jazyk český". Retrieved 15 May 2020. https://prirucka.ujc.cas.cz/?id=780
"pr. Kr". Hrvatski jezični portal. Retrieved 16 March 2021. http://hjp.znanje.hr/index.php?show=search_by_id&id=dl9nXRQ=
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"pr. n. e." Hrvatski jezični portal. Retrieved 16 March 2021. http://hjp.znanje.hr/index.php?show=search_by_id&id=dl9nXxQ=
"n. e." Hrvatski jezični portal. Retrieved 16 March 2021. http://hjp.znanje.hr/index.php?show=search_by_id&id=eF9iXRY=