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Halleck, Henry Wager

(Encyclopedia)Halleck, Henry Wager, 1815–72, Union general in the American Civil War, b. Oneida co., N.Y., grad. West Point, 1839. He entered the Corps of Engineers and became an expert on fortifications; his Ele...

Rosenberg Case

(Encyclopedia)Rosenberg Case, in U.S. history, a lengthy and controversial espionage case. In 1950, the Federal Bureau of Investigation arrested Julius Rosenberg (1918–53), an electrical engineer who had worked (...

Hebei

(Encyclopedia)Hebei or Hopei both: ho͝o-bā [key], province, 78,900 sq mi (204,404 sq km), NE China, on the Bohai, an ...

Douglas, William Orville

(Encyclopedia)Douglas, William Orville, 1898–1980, American jurist, associate justice of the U.S. Supreme Court (1939–75), b. Maine, Minn. He received his law degree from Columbia in 1925 and later was professo...

bubble chamber

(Encyclopedia)bubble chamber, device for detecting charged particles and other radiation by means of tracks of bubbles left in a chamber filled with liquid hydrogen or other liquefied gas. It was invented in 1952 b...

Mississippi, river, United States

(Encyclopedia)Mississippi, river, principal river of the United States, c.2,350 mi (3,780 km) long, exceeded in length only by the Missouri, the chief of its numerous tributaries. The combined Missouri-Mississippi ...

genocide

(Encyclopedia)genocide, in international law, the intentional and systematic destruction, wholly or in part, by a government of a national, racial, religious, or ethnic group. Although the term genocide was first c...

propaganda

(Encyclopedia)propaganda, systematic manipulation of public opinion, generally by the use of symbols such as flags, monuments, oratory, and publications. Modern propaganda is distinguished from other forms of commu...

Biafra, Republic of

(Encyclopedia)Biafra, Republic of, secessionist state of W Africa, in existence from May 30, 1967, to Jan. 15, 1970. At the outset Biafra comprised, roughly, the East-Central, South-Eastern, and Rivers states of th...

Haig, Douglas Haig, 1st Earl

(Encyclopedia)Haig, Douglas Haig, 1st Earl, 1861–1928, British field marshal. He saw active service in Sudan (1898) and in the South African War (1899–1902) and upon the outbreak of World War I (1914) was given...