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Ricardo, David

(Encyclopedia)Ricardo, David, 1772–1823, British economist, of Dutch-Jewish parentage. At the age of 20 he entered business as a stockbroker and was so skillful in the management of his affairs that within five y...

Riccio, David

(Encyclopedia)Riccio, David: see Rizzio, David. ...

Rittenhouse, David

(Encyclopedia)Rittenhouse, David, 1732–96, American astronomer and instrument maker, b. near Germantown, Pa., self-educated. A clockmaker by trade, he developed great skill in the making of mathematical instrumen...

Rizzio, David

(Encyclopedia)Rizzio, David rĭtˈsēō [key], 1533?–1566, favorite of Mary Queen of Scots. He was a Piedmontese musician (also called Riccio) who arrived (1561) in Scotland with the ambassador from Savoy. He cam...

Lodge, Henry Cabot, Jr.

(Encyclopedia)Lodge, Henry Cabot, Jr., 1902–85, American public official and diplomat, U.S. senator from Massachusetts (1937–44, 1947–53), b. Nahant, Mass.; grandson of Henry Cabot Lodge. He was a journalist ...

Dulles, John Foster

(Encyclopedia)Dulles, John Foster dŭlˈəs [key], 1888–1959, U.S. secretary of state (1953–59), b. Washington, D.C.; brother of Allen Dulles, grandson of John Watson Foster, secretary of state under President ...

executive order

(Encyclopedia)executive order, in the United States, official document initiated and signed by the president containing directives concerning how the executive branch shall carry out its responsibilities under the ...

Dinkins, David Norman

(Encyclopedia)Dinkins, David Norman, 1927–2020, African-American political leader, b. Trenton, N.J. After graduating (1956) from Brooklyn Law School, he went into private law practice. Active in Democratic politi...

Del Tredici, David

(Encyclopedia)Del Tredici, David dĕl trədēˈchē [key], 1937–, American composer, b. Cloverdale, Calif. Originally a pianist, he made his debut with the San Francisco Symphony at 16, and studied composition wi...

Dodge, David Low

(Encyclopedia)Dodge, David Low, 1774–1852, American merchant and pacifist, b. Brooklyn, Conn. In 1815 he founded the New York Peace Society, possibly the first such organization to be established. In 1828 other p...