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Roland de la Platière, Jean Marie

(Encyclopedia)Roland de la Platière, Jean Marie zhäN märēˈ rôläNˈ də lä plätyĕrˈ [key], 1734–93, French revolutionary. An inspector general of commerce at Rouen and Amiens, he went to Paris in 1791 a...

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...

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 ...

Jouvenet, Jean Baptiste

(Encyclopedia)Jouvenet, Jean Baptiste zhäN bätēstˈ zho͞ovənāˈ [key], 1644–1717, French painter, one of a family of painters. He worked in Paris in the studio of Charles Le Brun, whose manner he acquired a...

Pigalle, Jean Baptiste

(Encyclopedia)Pigalle, Jean Baptiste zhäN bätēstˈ pēgälˈ [key], 1714–85, French sculptor. His skill embraced a wide range, from small works appealing to the taste of the court to large and elaborate tombs....

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...

Marmontel, Jean François

(Encyclopedia)Marmontel, Jean François zhäN fräNswäˈ märmôNtĕlˈ [key], 1723–99, French critic, dramatist, and story writer, contributor to Diderot's Encyclopédie. Educated by the Jesuits, he taught in J...