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Constantine XI, Byzantine emperor

(Encyclopedia)Constantine XI (Constantine Palaeologus), d. 1453, last Byzantine emperor (1449–53), brother and successor of John VIII. To secure Western aid against the Turkish assault on what remained of the emp...

Crittenden, Thomas Theodore

(Encyclopedia)Crittenden, Thomas Theodore, 1832–1909, governor of Missouri (1881–85), b. Shelby co., Ky.; nephew of John J. Crittenden. In the Civil War he served (1862–65) as lieutenant colonel of a Missouri...

An Najaf

(Encyclopedia)An Najaf än näˈjäf [key], city (2020 pop. 874,000), S central Iraq, on a lake near the Euphrates River. The city, one of Shi'a Islam's holiest, is also called Mashad A...

Aratus, Greek statesman and general

(Encyclopedia)Aratus, d. 213 b.c., Greek statesman and general of Sicyon, prime mover and principal leader of the Second Achaean League. His objective at first was to free the Peloponnesus from Macedonian dominatio...

Butler, William Orlando

(Encyclopedia)Butler, William Orlando, 1791–1880, American general and political leader, b. Carrollton, Ky. He served in the War of 1812 and distinguished himself in the battle of New Orleans. He was a Congressma...

Zinkernagel, Rolf Martin

(Encyclopedia)Zinkernagel, Rolf Martin, 1944–, Swiss immunologist, grad. Univ. of Basel (M.D., 1968), Australian National Univ. (Ph.D., 1975). He has been a professor at the Univ. of Zürich since 1979. Zinkernag...

Voice of America

(Encyclopedia)Voice of America, broadcasting service of the United States Information Agency, est. 1942. Originally set up as a means of fighting the cold war, the Voice of America produces and broadcasts radio pro...

Cech, Thomas Robert

(Encyclopedia)Cech, Thomas Robert chĕk [key], 1947–, American microbiologist, b. Chicago, grad. Univ. of California, Berkeley. A professor at the Univ. of Colorado, he discovered that RNA could function as enzym...

Izmir

(Encyclopedia)Izmir smûrˈnə [key], city, capital of Izmir prov., W Turkey, on the Gulf of Izmir, an arm ...

water supply

(Encyclopedia)water supply, process or activity by which water is provided for some use, e.g., to a home, factory, or business. The term may also refer to the supply of water provided in this way. In the United Sta...