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Klein, Christian Felix

(Encyclopedia)Klein, Christian Felix klīn [key], 1849–1925, German mathematician. He is noted for his work in geometry and on the theory of functions. His Erlangen program (1872) for unifying the diverse forms ...

Minucius Felix, Marcus

(Encyclopedia)Minucius Felix, Marcus märˈkəs mĭnyo͞oshˈəs fēˈlĭks [key], fl. 2d cent., Christian apologist, author of a dialogue, Octavius, one of the earliest Latin apologies. In it a pagan and a Christi...

Klein, Melanie

(Encyclopedia)Klein, Melanie, 1882–1960, British psychoanalyst, b. Vienna. She became a psychoanalyst after seeking therapy from Sandor Ferenczi, a colleague of Sigmund Freud, who encouraged her to pursue her own...

Klein, Yves

(Encyclopedia)Klein, Yves, 1928–62, French painter. With critic Pierre Restany, he was a leader of the avant-garde movement called Nouveau Réalisme (founded 1960). In the 1950s Klein began to work in monochromes...

Felix

(Encyclopedia)Felix, Roman deacon, antipope (355–56). Emperor Constantius II, an Arian, set him up to replace Liberius. He is wrongly known as Felix II. ...

Felix V

(Encyclopedia)Felix V, antipope: see Amadeus VIII. ...

Christian I

(Encyclopedia)Christian I krĭsˈchən [key], 1426–81, king of Denmark (1448–81), Norway (1450–81), and Sweden (1457–64), count of Oldenburg, and founder of the Oldenburg dynasty of Danish kings. In 1460 he...

Christian V

(Encyclopedia)Christian V, 1646–99, king of Denmark and Norway (1670–99), son and successor of Frederick III. His minister, Griffenfeld, who until his fall in 1676 dominated Christian's reign, made the monarchy...

Christian X

(Encyclopedia)Christian X, 1870–1947, king of Denmark (1912–47) and Iceland (1912–44), son and successor of Frederick VIII and brother of King Haakon VII of Norway. He granted (1915) a new constitution that i...

Klein, Calvin Richard

(Encyclopedia)Klein, Calvin Richard klīn [key], 1942–, American fashion designer, b. New York City. In 1968 he established Calvin Klein Limited, which produced clothes and accessories bearing his hallmark of sim...