A WEEK.—The seven days of the week is by far the most permanent division of time, and the most ancient monument of astronomical knowledge; it was used by the Brahmins in India, with the same denomination used by us; and was alike found in the calendars of the Jews, Egyptians, Arabs, and Assyrians. It has survived the fall of empires, and has existed among all successive generations; a proof of the common origin of mankind. The division of the year into months is very old, and almost universal, but not so ancient or uniform as the seven days, or week.—Astronomer.