Dominical letter

Dominical letter

Jesse Russell Ronald Cohn

     

бумажная книга



ISBN: 978-5-5081-2428-1

High Quality Content by WIKIPEDIA articles! Dominical letters are letters A, B, C, D, E, F and G assigned to days in a cycle of seven with the letter A always set against 1 January as an aid for finding the day of the week of a given calendar date and in calculating Easter.