God, in creating the heavenly bodies, seems to have reflected that man would require some index to regulate his labors and the acts of his civil life.

The primary and most elementary subdivisions of time are day and night, and it demanded no great stretch of human ingenuity to divide the day into two sections, called forenoon and afternoon, or into twelve sections, called hours.

Such subdivisions of time would probably suggest themselves simultaneously to all the nations of the earth.

Necessity, who is the mother of all invention, doubtless called the germs of our calendar into existence." "Yes, so far as the days and hours are concerned.

There are other divisions--weeks, for example." "The division of time into weeks is a matter that belongs entirely to revelation; the Jews keep the last day of every seven as a day of rest, in accordance with the law of Moses, and the Christians dedicate the first day of every seven to our Lord and Saviour Jesus Christ." "Then there are months." "The month is another natural division.