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  2. Common Era - Wikipedia

    en.wikipedia.org/wiki/Common_Era

    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]

  3. 2nd millennium - Wikipedia

    en.wikipedia.org/wiki/2nd_millennium

    The second millennium of the Anno Domini or Common Era was a millennium spanning the years 1001 to 2000. It began on January 1, 1001 and ended on December 31, 2000 , (11th to 20th centuries; in astronomy: JD 2 086 667.5 – 2 451 909.5 [1]).

  4. List of time periods - Wikipedia

    en.wikipedia.org/wiki/List_of_time_periods

    Ancient history – Aggregate of past events from the beginning of recorded human history and extending as far as the Early Middle Ages or the Postclassical Era. The span of recorded history is roughly five thousand years, beginning with the earliest linguistic records in the third millennium BC in Mesopotamia and Egypt .

  5. Anno Domini - Wikipedia

    en.wikipedia.org/wiki/Anno_Domini

    The "Common/Current Era" ("CE") terminology is often preferred by those who desire a term that does not explicitly make religious references but still uses the same epoch as the anno Domini notation. [ 41 ] [ 42 ] For example, Cunningham and Starr (1998) write that "B.C.E./C.E. […] do not presuppose faith in Christ and hence are more ...

  6. Calendar era - Wikipedia

    en.wikipedia.org/wiki/Calendar_era

    A calendar era is the period of time elapsed since one epoch of a calendar and, if it exists, before the next one. [1] For example, the current year is numbered 2025 in the Gregorian calendar, which numbers its years in the Western Christian era (the Coptic Orthodox and Ethiopian Orthodox churches have their own Christian eras).

  7. 1st millennium - Wikipedia

    en.wikipedia.org/wiki/1st_millennium

    The first millennium of the anno Domini or Common Era was a millennium spanning the years 1 to 1000 (1st to 10th centuries; in astronomy: JD 1 721 425.5 – 2 086 667.5 [1]). The world population rose more slowly than during the preceding millennium, from about 200 million in the year 1 to about 300 million in the year 1000. [2]

  8. AD 1 - Wikipedia

    en.wikipedia.org/wiki/AD_1

    The denomination "AD 1" for this year has been in consistent use since the mid-medieval period when the Anno Domini (AD) calendar era became the prevalent method in Europe for naming years. It was the beginning of the Christian era/common era. The preceding year is 1 BC; there is no year 0 in this numbering scheme.

  9. Year zero - Wikipedia

    en.wikipedia.org/wiki/Year_zero

    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 fell out of use in English at the beginning of the 20th century after vulgar acquired the meaning of "offensively coarse", replacing its original meaning of ...