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Garvey, Marcus

(Encyclopedia)Garvey, Marcus, 1887–1940, American proponent of black nationalism, b. Jamaica. At the age of 14, Garvey went to work as a printer's apprentice. After leading (1907) an unsuccessful printers' strike...

Navalny, Alexei Anatolyevich

(Encyclopedia)Navalny, Alexei Anatolyevich, 1976–, Russian lawyer and political activist. Navalny joined the Russian United Democratic party...

lightning

(Encyclopedia)lightning, electrical discharge accompanied by thunder, commonly occurring during a thunderstorm. The discharge may take place between one part of a cloud and another part (intracloud), between one cl...

Work Projects Administration

(Encyclopedia)Work Projects Administration (WPA), former U.S. government agency, established in 1935 by executive order of President Franklin Delano Roosevelt as the Works Progress Administration; it was renamed th...

squash racquets

(Encyclopedia)squash racquets or squash, game played on a four-walled court, 16 ft (4.88 m) high by 181⁄2 ft (5.64 m) wide by 32 ft (9.75 m) long. The back wall, shorter than the front wall, usually measures 9 ft...

Ashe, John

(Encyclopedia)Ashe, John, c.1720–1781, American Revolutionary general, b. Brunswick co., N.C. Speaker of the colonial assembly (1762–65) and a leader of the opposition to the Stamp Act, he was important to the ...

Van Horne, Sir William Cornelius

(Encyclopedia)Van Horne, Sir William Cornelius, 1843–1915, president (1888–99) and chairman of the board (1899–1915) of the Canadian Pacific Railway, b. Illinois. He worked on U.S. railways before becoming (1...

Clark, Ramsey

(Encyclopedia)Clark, William Ramsey, 1927–2021, attorney general of the United States (1967–69), b. Dallas, Tex., Univ. of Texas-Austin (BA, 1949), Univ. of Chica...

progression

(Encyclopedia)progression, in mathematics, sequence of quantities, called terms, in which the relationship between consecutive terms is the same. An arithmetic progression is a sequence in which each term is derive...

Sheridan, Philip Henry

(Encyclopedia)Sheridan, Philip Henry, 1831–88, Union general in the American Civil War, b. Albany, N.Y. Although not a brilliant general, Sheridan's flair for leadership and his ready fighting ability made him th...