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noun. : christian era. Word History. First Known Use. 1651, in the meaning defined above. Time Traveler. The first known use of Common Era was in 1651. See more words from the same year. Dictionary Entries Near Common Era. Commoner. Common Era. common establishment. See More Nearby Entries. Cite this Entry. Style. “Common Era.”
The 21st century is the current century in the Anno Domini or Common Era, in accordance with the Gregorian calendar. It began on 1 January 2001 and will end on 31 December 2100. It is the first century of the 3rd millennium.
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.
