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Ricardo, David

(Encyclopedia)Ricardo, David, 1772–1823, British economist, of Dutch-Jewish parentage. At the age of 20 he entered business as a stockbroker and was so skillful in the management of his affairs that within five y...

Rittenhouse, David

(Encyclopedia)Rittenhouse, David, 1732–96, American astronomer and instrument maker, b. near Germantown, Pa., self-educated. A clockmaker by trade, he developed great skill in the making of mathematical instrumen...

Rizzio, David

(Encyclopedia)Rizzio, David rĭtˈsēō [key], 1533?–1566, favorite of Mary Queen of Scots. He was a Piedmontese musician (also called Riccio) who arrived (1561) in Scotland with the ambassador from Savoy. He cam...

Diez, Friedrich Christian

(Encyclopedia)Diez, Friedrich Christian frēˈdrĭkh krĭsˈtyän dēts [key], 1794–1876, German philologist. A professor at Bonn, Diez is noted as one of the founders of the science of Romanic philology. His gre...

Dahlmann, Friedrich Christoph

(Encyclopedia)Dahlmann, Friedrich Christoph frēˈdrĭkh krĭsˈtôf dälˈmän [key], 1785–1860, German historian. He was dismissed from his professorship at Göttingen for protesting (1837) the abrogation of th...

Herbart, Johann Friedrich

(Encyclopedia)Herbart, Johann Friedrich yōˈhän frēˈdrĭkh hĕrˈbärt [key], 1776–1841, German philosopher and educator. Influenced by Leibniz, Kant, and Fichte, Herbart made many important contributions to ...

Hebbel, Christian Friedrich

(Encyclopedia)Hebbel, Christian Friedrich krĭsˈtyän frēˈdrĭkh hĕbˈəl [key], 1813–63, German tragic dramatist. Born poor, he was largely self-educated. Hegel's historical theories influenced his work, whi...

Holstein, Friedrich von

(Encyclopedia)Holstein, Friedrich von frēˈdrĭkh fən hôlˈshtīn [key], 1837–1909, German diplomat. After the Congress of Berlin (1878) he became a powerful figure in shaping German foreign policy. His offici...

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