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Hahn, Otto

(Encyclopedia) Hahn, OttoHahn, Ottoôˈtō hän [key], 1879–1968, German chemist and physicist. His important contributions in the field of radioactivity include the discovery of several radioactive…

Guericke, Otto von

(Encyclopedia) Guericke, Otto vonGuericke, Otto vonôˈtō fən gāˈrĭkə [key], 1602–86, German physicist, noted for his study of pneumatics. He carried out his most important researches while burgomaster…

Boleslaus I

(Encyclopedia) Boleslaus IBoleslaus Ibōˈləslôs [key], c.966–1025, Polish ruler (992–1025), the first to call himself king; also called Boleslaus the Brave. He succeeded his father, Mieszko I, as duke…

Holy Roman Emperors (table)

(Encyclopedia) HOLY ROMAN EMPERORS(including dates of reign) Saxon dynasty Otto I, 936–73 Otto II, 973–83 Otto III, 983–1002 Henry II, 1002–24 Salian or Franconian dynasty Conrad II,…

Gervase of Tilbury

(Encyclopedia) Gervase of Tilbury, fl. 1200, medieval author, b. England. He became marshal of the kingdom of Arles under Emperor Otto IV and wrote the Otia imperiala, a miscellany of legend, history…

Struve

(Encyclopedia) StruveStruveshtr&oomacr;ˈvə [key], family of astronomers. Friedrich Georg Wilhelm von Struve, 1793–1864, was born in Germany but later lived in Russia. While director (1817–39) of…

Louis IV, French king

(Encyclopedia) Louis IV or Louis d'OutremerLouis d'Outremerlwē d&oomacr;trəmĕrˈ [key] [Fr.,=Louis from overseas], 921–54, French king (936–54), son of King Charles III (Charles the Simple). He…

Kahn, Otto Hermann

(Encyclopedia) Kahn, Otto HermannKahn, Otto Hermannkän [key], 1867–1934, American banker and patron of the arts, born and educated in Germany. He emigrated to the United States in 1893 and in 1897…

Bauer, Otto

(Encyclopedia) Bauer, OttoBauer, Ottobouˈər [key], 1882–1938, Austrian politician. His Die Nationalitätenfrage und die Sozialdemokratie (1907) advocated creating nation-states to solve the Austro-…

Chester Otto CARRIER, Congress, KY (1897-1980)

CARRIER Chester Otto , a Representative from Kentucky; born on a farm near Brownsville, Edmonson, County, Ky., May 5, 1897; attended the public schools of Grayson County, Ky., the University of…