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Labor Day

(Encyclopedia)Labor Day, holiday celebrated in the United States and Canada on the first Monday in September to honor the laborer. It was inaugurated by the Knights of Labor in 1882 and made a national holiday by t...

John Day

(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...

day lily

(Encyclopedia)day lily: see lily.

D-day

(Encyclopedia)D-day: see Normandy campaign.

sidereal day

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

Flag Day

(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.

Independence Day

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

Judgment Day

(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...

Lady Day

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

Columbus Day

(Encyclopedia)Columbus Day, holiday commemorating Christopher Columbus's discovery of America. It has been traditionally celebrated on Oct. 12 throughout most of the United States, parts of Canada, and in several o...