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Riis, Jacob August

(Encyclopedia)Riis, Jacob August rēs [key], 1849–1914, Danish-American journalist, photographer, and social reformer, b. Denmark. He immigrated to the United States in 1870. In 1877 he became a police reporter f...

Otto, Nikolaus August

(Encyclopedia)Otto, Nikolaus August nēˈkōlous ouˈgo͝ost ôˈtō [key], 1832–91, German engineer. He was coinventor (1867) of an internal-combustion engine, and he devised (1876) the four-stroke Otto cycle, w...

Petermann, August Heinrich

(Encyclopedia)Petermann, August Heinrich ouˈgo͝ost hīnˈrĭkh pāˈtərmän [key], 1822–78, German geographer, an authority on the geography of Africa and the Arctic. He had (1847–54) a cartographical establ...

Zinzendorf, Nikolaus Ludwig, Graf von

(Encyclopedia)Zinzendorf, Nikolaus Ludwig, Graf von nēˈkōlous lo͝otˈvĭkh gräf fən tsĭnˈtsəndôrf [key], 1700–1760, German churchman, patron and bishop of the refounded Moravian Church, b. Dresden. Rear...

Carlos, prince of the Asturias

(Encyclopedia)Carlos, 1545–68, prince of the Asturias, son of Philip II of Spain and Maria of Portugal. Don Carlos, who seems to have been mentally unbalanced and subject to fits of homicidal mania, was imprisone...

Scharnhorst, Gerhard Johann David von

(Encyclopedia)Scharnhorst, Gerhard Johann David von gĕrˈhärt yōˈhän däˈvēt fən shärnˈhôrst [key], 1755–1813, Prussian general. A Hanoverian army officer, military writer, and director of the war coll...

toy

(Encyclopedia)toy, article designed to be played with, chiefly for children. Archaeological research has revealed numerous playthings from prehistoric civilizations. Early Egyptian, Greek, and Roman dolls, tops, ba...

Carlsbad Decrees

(Encyclopedia)Carlsbad Decrees, 1819, resolutions adopted by the ministers of German states at a conference at Carlsbad that was convened and dominated by Prince Metternich following the murder of August von Kotzeb...

Stradella, Alessandro

(Encyclopedia)Stradella, Alessandro älĕs-sänˈdrō strädĕlˈlä [key], 1642?–1682, Italian composer of operas, cantatas, oratorios, and instrumental music. Few facts but many legends exist concerning his lif...

Humboldt, Alexander, Freiherr von

(Encyclopedia)Humboldt, Alexander, Freiherr von hŭmˈbōlt, Ger. älĕksänˈdər frīˈhĕr fən ho͝omˈbôlt [key], 1769–1859, German naturalist, inventor, explorer, and author, the most eminent scientist of ...