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Louis IV, French king

(Encyclopedia)Louis IV or Louis d'Outremer lwē do͞otrəmĕrˈ [key] [Fr.,=Louis from overseas], 921–54, French king (936–54), son of King Charles III (Charles the Simple). He spent his youth as an exile in En...

Wallis, John

(Encyclopedia)Wallis, John wŏlˈĭs [key], 1616–1703, English mathematician. He was Savilian professor of geometry at Oxford from 1649. He systematized the use of formulas, introduced the symbol ∞ for infinity...

Wilbye, John

(Encyclopedia)Wilbye, John wĭlˈbē [key], 1574–1638, English madrigal composer. Although only two sets of his madrigals (1598, 1609) are extant, their excellence distinguishes him as perhaps the greatest Englis...

Butler, John

(Encyclopedia)Butler, John, 1728–96, Loyalist commander in the American Revolution, b. New London, Conn. He served in the French and Indian Wars and distinguished himself especially by leading the Native American...

Clare, John

(Encyclopedia)Clare, John, 1793–1864, English poet. A romantic poet who wrote shortly after the vogue for such verse, he had a profound and singular gift for capturing nature in exquisitely specific detail. The s...

Norris, John

(Encyclopedia)Norris, John, 1657–1711, English clergyman and philosopher. As the most prominent follower of Malebranche he wrote, in exposition of that philosopher's system, An Essay towards the Theory of the Ide...

Alfonso X, Spanish king of Castile and León

(Encyclopedia)Alfonso X (Alfonso the Wise), 1221–84, Spanish king of Castile and León (1252–84); son and successor of Ferdinand III, whose conquests of the Moors he continued, notably by taking Cádiz (1262). ...

John Henry

(Encyclopedia)John Henry, legendary African American famous for his strength, celebrated in ballads and tales. In the most popular version of the story, John Henry tries to outwork a steam drill with only his hamme...

Law, John

(Encyclopedia)Law, John, 1671–1729, Scottish financier in France, b. Edinburgh. After killing a man in a duel (1694) he fled to Amsterdam, where he studied banking. Returning to Scotland (1700), he proposed to Pa...

Flanagan, John

(Encyclopedia)Flanagan, John flănˈəgən [key], 1865–1952, American sculptor and medalist. In 1932 he designed the George Washington silver quarter. In addition to medals and plaquettes, he produced larger work...