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Apollonius of Perga

(Encyclopedia)Apollonius of Perga, fl. 247–205 b.c., Greek mathematician of the Alexandrian school. He produced a treatise on conic sections that included, as well as his own work, much of the work of his predece...

Apollonius of Tralles

(Encyclopedia)Apollonius of Tralles: see Farnese Bull. ...

Apollonius of Tyana

(Encyclopedia)Apollonius of Tyana, fl. 1st cent. a.d., Greek philosopher, b. Tyana, Cappadocia. A philosopher of the Neo-Pythagorean school, he traveled widely and became famous for his wisdom and reputed magical p...

Ituzaingó, battle of

(Encyclopedia)Ituzaingó, battle of ēˌto͞osīn-gōˈ [key], fought in S Uruguay, Feb. 20, 1827. A combined Argentine-Uruguayan force under Carlos María de Alvear decisively defeated Brazil. The United Provinces...

Iowa, University of

(Encyclopedia)Iowa, University of, at Iowa City; state supported; coeducational; chartered 1847, opened 1855. It has a noted program in the creative arts, including the Iowa Writers' Workshop, one of the most prest...

Ireland, Church of

(Encyclopedia)Ireland, Church of, Anglican church of both the Republic of Ireland and Northern Ireland. As a separate body the church goes back to the Reformation when the Irish church was officially reformed along...

Ireland, Republic of

(Encyclopedia)CE5 Ireland, Republic of, Gaelic, Eire, republic (2015 est. pop. 4,700,000), 27,136 sq mi (70,282 sq km). It occupies all but the northeastern corner of the island of Ireland in the British Isles. ...

Isabel of Bavaria

(Encyclopedia)Isabel of Bavaria, 1371–1435, French queen, consort of Charles VI, daughter of the duke of Bavaria. After her marriage (1385) she was several times regent for her demented husband. Sympathizing with...