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Picard, Jean

(Encyclopedia)Picard, Jean, 1620–82, French astronomer, noted for having made the first accurate measurement of a degree of the earth's meridian. The figures he established were of great value to Newton in his ca...

Castex, Jean

(Encyclopedia)Castex, Jean, 1965–, French government official and political leader. A member of the center-right Republicans (and its predecessor, the Union for a Popular Movement), Castex has held a variety of c...

Arch, Joseph

(Encyclopedia)Arch, Joseph, 1826–1919, English labor leader, a Primitive Methodist preacher. He founded the National Agricultural Labourers Union in 1872 and became its president. In 1873, Arch visited Canada and...

Liotard, Jean-Étienne

(Encyclopedia)Liotard, Jean-Étienne zhäN ātyĕnˈ lyôtärˈ [key], 1702–89, Swiss painter. He is best known for his portraits and drawings in pastel, but he also made portraits in oil, paintings on glass and ...

Fresnel, Augustin Jean

(Encyclopedia)Fresnel, Augustin Jean ōgüstăNˈ zhäN frānĕlˈ [key] 1788–1827, French physicist and engineer. He is known for his research on light, especially on conditions governing interference phenomena ...

Nathan, George Jean

(Encyclopedia)Nathan, George Jean, 1882–1958, American editor and drama critic, b. Fort Wayne, Ind. He left the New York Herald to join H. L. Mencken in editing Smart Set (1914–23), which they made into a guide...

Duvalier, Jean-Claude

(Encyclopedia)Duvalier, Jean-Claude düvälyāˈ [key], 1951–2014, president of Haiti (1971–86). At age 19, he was proclaimed “president for life” upon the death of his father, Francois Duvalier. Under gre...

Ritson, Joseph

(Encyclopedia)Ritson, Joseph, 1752–1803, English antiquarian and scholar, b. Stockton-on-Tees. An industrious student of English literature, he attacked Thomas Warton's scholarship in Observations on Warton's His...

Habersham, Joseph

(Encyclopedia)Habersham, Joseph, 1751–1815, political leader in the American Revolution and U.S. Postmaster General (1795–1801), b. Savannah, Ga.; the son of James Habersham. From the beginning, he was active i...

Pickett, Joseph

(Encyclopedia)Pickett, Joseph, 1848–1918, American primitive painter, b. New Hope, Pa., where he lived all his life. He worked as a carpenter, canal-boat builder, and grocer. At about age 65, Pickett turned to pa...