Calendar dating for previous years

Posted by / 01-May-2020 18:10

Calendar dating for previous years

This number, 2 × 12, or 24, was derived in Babylonia from the Sumerian sexagesimal method of reckoning, based on gradations of 60 (5 × 12 = 60) rather than on multiples of 10.

In Babylonia, for most purposes, both daylight and night were divided into three equal watches, and each watch was subdivided into half- and quarter-watches.

Such hours, became customary in antiquity because they corresponded to the length of the Sun’s time above the horizon, at maximum in summer and at minimum in winter.This was the practice of the Greeks, the Sumerians and Babylonians, the Egyptians, and the Romans—and of Western Christendom so far as civil reckoning was concerned.The church adopted its own canonical hours for reckoning daily worship: there were seven of these—matins, prime, terce, sext, none, vespers, and compline—but in secular affairs the system of 24 hours held sway.When the increasing accuracy of clocks led to the adoption of the mean solar day, which contained 86,400… In earlier civilizations and among primitive peoples, where there was less communication between different settlements or groups, different methods of reckoning the day presented no difficulties.Most primitive tribes used a dawn-to-dawn reckoning, calling a succession of days so many dawns, or suns.

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