Term: Common Era, Description: alternative (and religiously neutral) naming of the traditional calendar era, Anno Domini, Question: The Common Era notations are not numerically equivalent to the notations used in the calendar promulgated in 1582 by Pope Gregory XIII?, Answer:No
Fact1: Common Era (CE) is one of the notation systems for the world's most widely used calendar era Fact2:  CE is the alternative to the Dionysian use of AD. Fact3: CE and AD are numerically equivalent. Fact4: The Gregorian calendar was promulgated in 1582 by Pope Gregory XIII. Fact5: The Gregorian calendar uses AD. 