The Easter Computus and the Origins of the Christian Era

ISBN: 9780199543120 出版年：2009 页码：487 Mosshammer, Alden A Oxford University Press

This is the first comprehensive study in English of early Christian methods for calculating the phases of the moon and the date for Easter Sunday to have appeared in more than one hundred years. It offers a new explanation of how the system of numbering the years AD (Anni Domini, Years of the Lord) originated.