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dentition

(Encyclopedia)dentition, kind, number, and arrangement of the teeth of humans and other animals. During the course of evolution, teeth were derived from bony body scales similar to the placoid scales on the skin of...

Chibcha

(Encyclopedia)Chibcha chĭbˈchə [key], indigenous people of the eastern cordillera of the Andes of Colombia. Although trade with neighboring tribes was common, the Chibcha seem to have evolved their culture in co...

Abu al-Faraj Ali of Esfahan

(Encyclopedia)Abu al-Faraj Ali of Esfahan äˈbo͞o äl-färajˈ älēˈ, ĕsfähänˈ [key], 897–967, Arabic scholar from Iran. He is mainly known for his invaluable Kitab al-Aghani (book of songs), which provid...

Counts, George Sylvester

(Encyclopedia)Counts, George Sylvester, 1889–1974, American educator, b. near Baldwin City, Kans., grad. Baker Univ., 1911, Ph.D. Univ. of Chicago, 1916. He taught in the educational departments of several univer...

Shockley, William Bradford

(Encyclopedia)Shockley, William Bradford, 1910–89, American physicist, b. London. He graduated from the California Institute of Technology (B.S., 1932) and the Massachusetts Institute of Technology (Ph.D., 1936)....

Chalcedon, Council of

(Encyclopedia)Chalcedon, Council of, fourth ecumenical council, convened in 451 by Pulcheria and Marcian, empress and emperor of the East, to settle the scandal of the Robber Synod and to discuss Eutychianism (see ...

Dewey, John

(Encyclopedia)Dewey, John, 1859–1952, American philosopher and educator, b. Burlington, Vt., grad. Univ. of Vermont, 1879, Ph.D. Johns Hopkins, 1884. He taught at the universities of Minnesota (1888–89), Michig...

archaeology

(Encyclopedia)archaeology ärkēŏlˈəjē [key] [Gr.,=study of beginnings], a branch of anthropology that seeks to document and explain continuity and change and similarities and differences among human cultures. ...

Simpson, George Gaylord

(Encyclopedia)Simpson, George Gaylord, 1902–84, American paleontologist and zoologist, b. Chicago, Ph.D. Yale, 1926. He became assistant curator of vertebrate paleontology at the American Museum of Natural Histor...

Institute of International Law

(Encyclopedia)Institute of International Law, Fr., Institut de Droit International, private international organization, est. 1873 in Ghent, Belgium, dedicated to the study, development, and implementation of intern...