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Mitre, Bartolomé

(Encyclopedia)Mitre, Bartolomé bärˌtōlōmāˈ mēˈtrā [key], 1821–1906, Argentine statesman, general, and author, president of the republic (1862–68). An opponent of Juan Manuel de Rosas, he was forced in...

Pedro II

(Encyclopedia)Pedro II (Dom Pedro II de Alcântara), 1825–91, emperor of Brazil (1831–89). At the age of five, he succeeded under a regency when his father, Pedro I, abdicated. He was declared of age in 1840. P...

Wichita, indigenous people of North America

(Encyclopedia)Wichita wĭchˈĭtô [key], Native North Americans whose language belongs to the Caddoan branch of the Hokan-Siouan linguistic stock (see Native American languages). They formerly occupied central Kan...

Urquiza, Justo José de

(Encyclopedia)Urquiza, Justo José de ho͞oˈstō hōsāˈ ᵺā o͞orkēˈsä [key], 1801–70, Argentine general and politician, president of the confederation (1854–60). As the caudillo of Entre Ríos prov., h...

Sikhism

(Encyclopedia)Sikhism sĭkˈĭzəm [key], religion centered in the Indian state of Punjab, numbering worldwide some 19 million. Some 300,000 Sikhs live in Britain, and there are smaller communities in North America...

Menem, Carlos Saúl

(Encyclopedia)Menem, Carlos Saúl kärˈlōs säo͞olˈ māˈnĕm [key], 1930–2021, president of ...

helicopter

(Encyclopedia)helicopter, type of aircraft in which lift is obtained by means of one or more power-driven horizontal propellers called rotors. When the rotor of a helicopter turns it produces reaction torque which ...

Isabella II

(Encyclopedia)Isabella II, 1830–1904, queen of Spain (1833–68), daughter of Ferdinand VII and of Maria Christina. Her uncle, Don Carlos, contested her succession under the Salic law, and thus the Carlist Wars b...

Colorado River storage project

(Encyclopedia)Colorado River storage project, a multipurpose plan, undertaken by the U.S. Bureau of Reclamation in 1956, to control the flow of the upper Colorado and its tributaries and to aid in the development o...

Guevara, Che

(Encyclopedia)Guevara, Che (Ernesto Guevara) chā gāväˈrä, ārnĕsˈtō [key], 1928–67, Cuban revolutionary and political leader, b. Argentina. Trained as a physician at the Univ. of Buenos Aires, he took par...