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Canada Day

(Encyclopedia)Canada Day, formerly Dominion Day, Canadian national holiday, celebrated July 1. It is the anniversary of the uniting in 1867 of Upper and Lower Canada, New Brunswick, and Nova Scotia as the dominion ...

Veterans' Day

(Encyclopedia)Veterans' Day, holiday formerly observed in the United States as Armistice Day in commemoration of the signing of the Armistice ending World War I. Nov. 11 officially became Veterans' Day on May 24, 1...

Valentine's Day

(Encyclopedia)Valentine's Day: see Saint Valentine's Day. ...

Thanksgiving Day

(Encyclopedia)Thanksgiving Day, national holiday in the United States commemorating the Pilgrims' celebration of the harvest reaped by the Plymouth Colony in 1621, after a winter of great starvation and privation. ...

sidereal day

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

Dillon, Clarence Douglas

(Encyclopedia)Dillon, Clarence Douglas dĭlˈən [key], 1909–2003, U.S. secretary of the treasury (1961–65), b. Geneva, Switzerland (of American parents). After graduation (1931) from Harvard he became a member...

Dutton, Clarence Edward

(Encyclopedia)Dutton, Clarence Edward, 1841–1912, American geologist, b. Wallingford, Conn., grad. Yale, 1860. After service in the army during and after the Civil War, he was a member (1875–91) of the U.S. Geo...

Dykstra, Clarence Addison

(Encyclopedia)Dykstra, Clarence Addison dīkˈstrə [key], 1883–1950, American educator and civic administrator, b. Cleveland, grad. Univ. of Iowa, 1903. After graduate work at the Univ. of Chicago, he taught in ...

Darrow, Clarence Seward

(Encyclopedia)Darrow, Clarence Seward, 1857–1938, American lawyer, b. Kinsman, Ohio. He first practiced law in Ashtabula, Ohio. In 1887 he moved to Chicago, where he was corporation counsel for several years and ...

Alvord, Clarence Walworth

(Encyclopedia)Alvord, Clarence Walworth ălˈvərd [key], 1868–1928, American historian, b. Greenfield, Mass. He became (1901) an instructor in history at the Univ. of Illinois (Ph.D., 1908) and was full professo...