SUNDAY

, the first day of the week; thus called by our idolatrous ancestors, because set apart for the worship of the sun.

It is sometimes called the Lord's Day, because kept as a feast in memory of our Lord's resurrection on this day: and also Sabbath-day, because substituted under the new law instead of the Sabbath in the old law.

It was Constantine the Great who first made a law for the proper observation of Sunday; and who, according to Eusebius, appointed that it should be regularly celebrated throughout the Roman empire.

Sunday Letter. See Dominical Letter.