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Organization of American States
(Encyclopedia)Organization of American States (OAS), international organization, created Apr. 30, 1948, at Bogotá, Colombia, by agreement of Argentina, Bolivia, Brazil, Chile, Colombia, Costa Rica, the Dominican R...Organization of Eastern Caribbean States
(Encyclopedia)Organization of Eastern Caribbean States: see under West Indies Federation. ...Pan-American Health Organization
(Encyclopedia)Pan-American Health Organization, inter-American health organization. It was established in 1902 as the International Sanitary Bureau; the present name was adopted in 1958. Its members include all the...Organization of African Unity
(Encyclopedia)Organization of African Unity (OAU), former international organization, established 1963 at Addis Ababa, Ethiopia, by 37 independent African nations to promote unity and development; defend the sovere...Organization of Islamic Cooperation
(Encyclopedia)Organization of Islamic Cooperation (OIC), international organization of 57 countries whose inhabitants are mainly Muslim, est. 1969 as the Organization of the Islamic Conference, renamed 2011. It is ...Hadassah, organization
(Encyclopedia)Hadassah, women's Zionist organization of the United States founded (1912) by Henrietta Szold. It has done important work in Israel in medical service, child welfare, and aid to refugees. Hadassah pro...Organization of Petroleum Exporting Countries
(Encyclopedia)Organization of Petroleum Exporting Countries (OPEC), multinational organization (est. 1960, formally constituted 1961) that coordinates petroleum policies and economic aid among oil-producing nations...Organization of the Islamic Conference
(Encyclopedia)Organization of the Islamic Conference: see Organization of Islamic Cooperation. ...American
(Encyclopedia)American, river, 30 mi (48 km) long, rising in N central Calif. in the Sierra Nevada and flowing SW into the Sacramento River at Sacramento. The discovery of gold at Sutter's Mill (see Sutter, John Au...states of matter
(Encyclopedia)states of matter, forms of matter differing in several properties because of differences in the motions and forces of the molecules (or atoms, ions, or elementary particles) of which they are composed...Browse by Subject
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