Columbia Encyclopedia

(Encyclopedia) Foucault, Jean Bernard Léon zhäN bĕrnärˈ lāôNˈ fo͞okōˈ [key], 1819–68, French physicist. Known especially for his research on the speed of light, he determined its velocity in air and fou...

(Encyclopedia) Saint-Jean d'Acre: see Akko, Israel. ...

(Encyclopedia) Bernadotte, Jean Baptiste Jules: see Charles XIVNorway. ...

(Encyclopedia) Boyer, Jean Pierre zhäN pyĕr bwäyāˈ [key], 1776–1850, president of Haiti (1818–43). A free mulatto, he fought under Toussaint Louverture and then joined André Rigaud, also a mulatto, in the ...

(Encyclopedia) Casimir-Perier, Jean Paul Pierre zhäN pōl pyĕr käzēmērˈ-pĕryāˈ [key], 1847–1907, French president (June, 1894–Jan., 1895). He held several cabinet posts before serving as premier in 1893...

(Encyclopedia) Louis IX or Saint Louis, 1214–70, king of France (1226–70), son and successor of Louis VIII. His mother, Blanche of Castile, was regent during his minority (1226–34), and her regency probably la...

(Encyclopedia) La Bruyère, Jean de zhäN də lä brüyĕrˈ [key], 1645–96, French writer. He lived (1684–96) as tutor in the house of the prince de Condé. His great work, Les Caractères de Théophraste, trad...

(Encyclopedia) Joinville, Jean, sire de zhäN sēr də zhwăNvēlˈ [key], 1224?–1317?, French chronicler, biographer of Louis IX of France (St. Louis). As seneschal (governor) of Champagne, Joinville was a close ...

(Encyclopedia) Raffarin, Jean-Pierre zhäN-pyĕr räfärăNˈ [key], 1948–, French politician. From a political family, he began his career in business and served as a spokesman for a labor minister in the late 19...

(Encyclopedia) Alembert, Jean le Rond d' zhäN lərôNˈ däläNbĕrˈ [key], 1717–83, French mathematician and philosopher. The illegitimate son of the chevalier Destouches, he was named for the St. Jean le Rond ...