books.google.ca - From one of the leading historians of the Jewish past comes a stunning look into a previously unexamined dimension of Jewish life and culture: the calendar. In the late sixteenth century, Pope Gregory XIII instituted a momentous reform of Western timekeeping, and with it a period of great instability....http://books.google.ca/books/about/Palaces_of_Time.html?id=dZSmDsoU11kC&utm_source=gb-gplus-sharePalaces of Time
