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calcium

(Encyclopedia)calcium kălˈsēəm [key] [Lat.,=lime], metallic chemical element; symbol Ca; at. no. 20; at. wt. 40.078; m.p. about 839℃; b.p. 1,484℃; sp. gr. 1.55 at 20℃; valence +2. Calcium is a malleable, ...

Belize

(Encyclopedia)CE5 Belize bəlēzˈ [key], independent state within the Commonwealth of Nations (2020 est. ...

Indian wars

(Encyclopedia)Indian wars, in American history, general term referring to the series of conflicts between Europeans and their descendants and the indigenous peoples of North America. After 1860 the wars continued...

Netherlands, Austrian and Spanish

(Encyclopedia)Netherlands, Austrian and Spanish, that part of the Low Countries that, from 1482 until 1794, remained under the control of the imperial house of Hapsburg. The area corresponds roughly to modern Belgi...

spectrum

(Encyclopedia)CE5 Dispersion of white light by a triangular prism spectrum, arrangement or display of light or other form of radiation separated according to wavelength, frequency, energy, or some other propert...

chemical warfare

(Encyclopedia)chemical warfare, employment in war of incendiaries, poison gases, and other chemical substances. Ancient armies attacking or defending fortified cities threw burning oil and fireballs. A primitive ty...

William III, king of England, Scotland, and Ireland

(Encyclopedia)William III, 1650–1702, king of England, Scotland, and Ireland (1689–1702); son of William II, prince of Orange, stadtholder of the United Provinces of the Netherlands, and of Mary, oldest daughte...

Vienna, Congress of

(Encyclopedia)Vienna, Congress of, Sept., 1814–June, 1815, one of the most important international conferences in European history, called to remake Europe after the downfall of Napoleon I. Although the territo...

Hawaii, state, United States

(Encyclopedia)CE5 Hawaii həwīˈē, häväˈē [key], 50th state of the United States, comprising a group of eight major islands and numerous islets in the central Pacific Ocean, c.2,100 mi (3,380 km) SW of San...

Charles II, king of England, Scotland, and Ireland

(Encyclopedia)Charles II, 1630–85, king of England, Scotland, and Ireland (1660–85), eldest surviving son of Charles I and Henrietta Maria. Charles was a ruler of considerable political skill. His reign was m...