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Catholic Dictionary




The fiscal period of fifteen years adopted by Emperor Constantine (c. 274-337). It is the chronological epoch used in papal and other documents. For ecclesiastical purposes Pope St. Gregory fixed January 1, 313, as the date of its having started, and it is still noted in the Roman calendar. (Etym. Latin in-, in + dicere, to say: indictio, a declaration, appointment, especially appointment of tax.)