70260851
9781017995985
Packer, George Nichols is the author of 'Our Calendar : The Julian Calendar and Its Errors. How Corrected by the Gregorian. Rules for Finding the Dominical Letter, and the Day of the Week of Any Event from the Days of Julius Caesar 46 B. C. to the Year of Our Lord Four Thousand, a New and Easy M', published 2022 under ISBN 9781017995985 and ISBN 1017995982.
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