+Anno Domini (AD), Latin for "in the year of the Lord," is the primary [calendar](/wiki/calendar) era used worldwide to number years from the traditional birth of [Jesus](/wiki/jesus). It forms the basis of the Gregorian calendar and is often used interchangeably with the Common Era (CE).
+## See also
+- [Before Christ](/wiki/before_christ)
+- [Common Era](/wiki/common_era)
+- [Calendar](/wiki/calendar)
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