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Aymer of Valence, earl of Pembroke

(Encyclopedia)Aymer of Valence, earl of Pembroke: see Pembroke, Aymer de Valence, earl of. ...

York, Edmund of Langley, duke of

(Encyclopedia)York, Edmund of Langley, duke of, 1341–1402, fifth son of Edward III of England. He was made (1362) earl of Cambridge, served on expeditions to Spain and France, and married (1372) Isabel, daughter ...

Baer, Karl Ernst von

(Encyclopedia)Baer, Karl Ernst von, 1792–1876, Estonian biologist. He was a professor at Würzburg and Königsberg and from 1834 at St. Petersburg. Considered a founder of modern embryology, he discovered the not...

Leibniz, Gottfried Wilhelm, Baron von

(Encyclopedia)Leibniz or Leibnitz, Gottfried Wilhelm, Baron von both: gôtˈfrēt vĭlˈhĕlm bärônˈ fan līpˈnĭts [key], 1646–1716, German philosopher and mathematician, b. Leipzig. Although known primarily...

Wittgenstein, Ludwig Josef Johann

(Encyclopedia)Wittgenstein, Ludwig Josef Johann loŏtˈvĭkh yōˈzĕf yōˈhän vĭtˈgənshtīn [key], 1889–1951, Austrian philosopher, b. Vienna. The second phase of Wittgenstein's philosophy commenced with ...

infancy

(Encyclopedia)infancy, stage of human development lasting from birth to approximately two years of age. The hallmarks of infancy are physical growth, motor development, vocal development, and cognitive and social d...

geology

(Encyclopedia)geology, science of the earth's history, composition, and structure, and the associated processes. It draws upon chemistry, biology, physics, astronomy, and mathematics (notably statistics) for suppor...

Freeport, city, Bahamas

(Encyclopedia)Freeport, city, Grand Bahama Island, Bahamas. A popular resort area, it developed out of a 1955 agreement between the Bahamian colonial government and a...

Colombo Plan

(Encyclopedia)Colombo Plan, international economic organization created in a cooperative attempt to strengthen the economic and social development of the nations of Southeast Asia and the Pacific. Officially the Co...

Brazelton, T. Berry

(Encyclopedia)Brazelton, T. Berry (Thomas Berry Brazelton Jr.), 1918–2018, American pediatrician and author, b. Waco, Tex., grad. Princeton, 1940, College of Physicians and Surgeons, Columbia 1943. Brazelton was ...