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William I, king of the Netherlands

(Encyclopedia)William I, 1772–1843, first king of the Netherlands and grand duke of Luxembourg (1815–40), son of Prince William V of Orange, last stadtholder of the Netherlands. He commanded (1793–95) the Dut...

limit

(Encyclopedia)limit, in mathematics, value approached by a sequence or a function as the index or independent variable approaches some value, possibly infinity. For example, the terms of the sequence 1⁄2, 1⁄4, ...

Maya, indigenous people of Mexico and Central America

(Encyclopedia)Maya mīˈə, Span. mäˈyä [key], indigenous people of S Mexico and Central America, occupying an area comprising the Yucatán peninsula and much of the present state of Chiapas in Mexico, Guatemala...

Alexander III, czar of Russia

(Encyclopedia)Alexander III, 1845–94, czar of Russia (1881–94), son and successor of Alexander II. Factors that contributed to Alexander's reactionary policies included his father's assassination, his limited i...

Descartes, René

(Encyclopedia)Descartes, René rənāˈ dākärtˈ [key], Lat. Renatus Cartesius, 1596–1650, French philosopher, mathematician, and scientist, b. La Haye. Descartes' methodology was a major influence in the trans...

Port Authority of New York and New Jersey

(Encyclopedia)Port Authority of New York and New Jersey, self-sustaining public corporation established in 1921 by the states of New York and New Jersey to administer the activities of the New York–New Jersey por...

Congo, Republic of the

(Encyclopedia)CE5 Congo, Republic of the, republic (2015 est. pop. 4,996,000), 132,046 sq mi (342,000 sq km), W central Africa; also known as the Congo Republic. Congo is bordered on the west by Gabon; on the no...

Manuel I, 1469–1521, king of Portugal

(Encyclopedia)Manuel I, 1469–1521, king of Portugal (1495–1521), successor of John II. Manuel's reign was most notable for the successful continuation of Portugal's overseas enterprises. John had planned the ex...

Gauss, Carl Friedrich

(Encyclopedia)Gauss, Carl Friedrich kärl frēˈdrĭkh gous [key], born Johann Friederich Carl Gauss, 1777–1855, German mathematician, physicist, and astronomer. Gauss was educated at the Caroline College, Brunsw...