Columbia Encyclopedia

(Encyclopedia) April Fool's Day or All Fool's Day, holiday of uncertain origin, known for practical joking and celebrated on the first of April. Prior to the adoption of the Gregorian calendar in 1564, the date was ...

(Encyclopedia) Seventh-Day Baptists, Protestant church holding the same doctrines as other Calvinistic Baptists but observing the seventh day of the week as the Sabbath. In the Reformation in England the observance ...

(Encyclopedia) John Day, river, 281 mi (452 km) long, rising in several branches in the Strawberry Mts., NE Oreg., and flowing W, then N to the Columbia River. Unnavigable, the river is used to irrigate vegetable fa...

(Encyclopedia) day lily: see lily.

(Encyclopedia) D-day: see Normandy campaign.

(Encyclopedia) Flag Day, anniversary of the adoption of the American flag in 1777. It is celebrated on June 14 but is not a legal holiday.

(Encyclopedia) sidereal day: see sidereal time. ...

(Encyclopedia) Independence Day: see Fourth of July. ...

(Encyclopedia) Judgment Day or Doomsday, central point of early Christian, Jewish, and Islamic eschatology, sometimes called the Day of the Lord. References to it throughout the Bible are numerous. The Christian bel...

(Encyclopedia) Lady Day or Annunciation: see Mary. ...