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(Encyclopedia)Aetolian League, confederation centering in the cities of Aetolia. It was formed in the 4th cent. b.c. and began to gain power in the 3d cent. in opposing the Achaean League and the Macedonians. At it...

Richards, Theodore William

(Encyclopedia)Richards, Theodore William, 1868–1928, American chemist, b. Germantown, Pa., Ph.D. Harvard, 1888. Richards was a professor at Harvard from 1891 until his death in 1928. In 1914 he received the Nobel...

Changes in English Pronunciation (table)

(Encyclopedia)Changes in English Pronunciation ...

Rulers of France since 987 (table)

(Encyclopedia)Rulers of France since 987(including dates of reign) The Capetians House of Valois House of Bourbon The First Republic The First Empire Bourbon Restoration House of Bourbon-Orléans T...

Commerce, United States Department of

(Encyclopedia)Commerce, United States Department of, federal executive department charged with promoting U.S. economic development and technological advancement. In Feb., 1903, the Congress established a Department...

Dynasties of Ancient Egypt (table)

(Encyclopedia)Dynasties of Ancient Egypt Old Kingdom (or Old Empire) First Intermediate Period Middle Kingdom (or Middle Empire) Second Intermediate Period New Kingdom (or New Empire) ...

Uralic and Altaic languages

(Encyclopedia)Uralic and Altaic languages yo͝orălˈĭk, ăltāˈĭk [key], two groups of related languages thought by many scholars to form a single Ural-Altaic linguistic family. However, other authorities hold ...

English units of measurement

(Encyclopedia)English units of measurement, principal system of weights and measures used in a few nations, the only major industrial one being the United States. It actually consists of two related systems—the U...

Periodic Table of the Elements: Actinium

(Encyclopedia)Periodic Table of the Elements: Actinium ...