A history of the calendar from the primitive concepts of measuring time used by ancient civilizations to the Gregorian calendar invented in 1582 still used today.
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Book Description Harpercollins, 1967. Library Binding. Book Condition: New. Never used!. Bookseller Inventory # P110381999750
Book Description HarperCollins, 1967. Library Binding. Book Condition: New. book. Bookseller Inventory # M0381999750