Week

a period of seven days. Although it is one of the commonest divisions of time, it is of unknown origin. The Greeks and Romans divided the month into three periods each. Although the people of India have names for the successive days, the week is said to be unknown. The week was introduced into modern Europe by the Christians, who, in turn, derived it from the Hebrews. The week is not an exact division of either the month or the year. It appears to be based rather on the Hebrew account of the origin of the world, according to which the Creator worked six days and rested the seventh. See Sunday; Monday, etc.