Biography Category
1666–96, czar of Russia (1682–96), son of Czar Alexis by his first wife. Ivan was mentally retarded, and on the death of his elder brother, Feodor...
( z´m ) (KEY) , 1887–1965, British general, known as “Pug” Ismay. He served in India and, during World War I, in Africa. During World War II he...
( s´kyä) (KEY) , volcanic island (1991 pop. 16,013), 18 sq mi (47 sq km), Campania, S Italy, in the Tyrrhenian Sea between the Gulf of Gaeta and the...
isopropyl alcohol, or 2-propanol ( ´´s pr ´p n l, ´´s pr ´p l) (KEY) , (CH3)2CHOH, a colorless liquid that is miscible with water. It melts at...
1494–1559, series of regional wars brought on by the efforts of the great European powers to control the small independent states of Italy. Renaissa...
1856–1937, American inventor, b. Litchfield, Conn. A pioneer in the development of orthochromatic and trichromatic photography and of photoengraving...