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Confederation, Articles of

(Encyclopedia)Confederation, Articles of, in U.S. history, ratified in 1781 and superseded by the Constitution of the United States in 1789. The imperative need for unity among the new states created by the America...

control systems

(Encyclopedia)control systems, combinations of components (electrical, mechanical, thermal, or hydraulic) that act together to maintain actual system performance close to a desired set of performance specifications...

corvée

(Encyclopedia)corvée kôrvāˈ [key], under the feudal system, compulsory, unpaid labor demanded by a lord or king and the system of such labor in general. There were national and local variations, but in broad te...

Leland, Charles Godfrey

(Encyclopedia)Leland, Charles Godfrey hänsˈ brītmän [key], 1824–1903, American author, b. Philadelphia, grad. College of New Jersey (now Princeton), 1845, studied at Heidelberg, Munich, and Paris. While edito...

McIntosh, Lachlan

(Encyclopedia)McIntosh, Lachlan măkˈəntŏshˌ [key], 1725–1806, American Revolutionary general, b. Scotland. He was brought as a child to a Scottish settlement, which is now Darien, Ga. In 1776 he joined the ...

Ettwein, John

(Encyclopedia)Ettwein, John ĕtˈvīn [key], 1721–1802, German-American churchman, leader and bishop of the Moravian Church in the United States. He came to America from Germany in 1754 as a missionary. In his mi...

Grand Banks

(Encyclopedia)Grand Banks, submarine plateau rising from the continental shelf, c.36,000 sq mi (93,200 sq km), off SE Newfoundland, N.L., Canada. It is c.300 mi (480 km) long and c.400 mi (640 km) wide; depths rang...

Valley Forge

(Encyclopedia)Valley Forge, on the Schuylkill River, SE Pa., NW of Philadelphia. There, during the American Revolution, the main camp of the Continental Army was established (Dec., 1777–June, 1778) under the comm...

Ellsworth, Oliver

(Encyclopedia)Ellsworth, Oliver, 1745–1807, American political leader, 3d chief justice of the United States (1796–1800), b. Windsor, Conn. A Hartford lawyer, he was (1778–83) a member of the Continental Cong...

Hancock, John

(Encyclopedia)Hancock, John, 1737–93, political leader in the American Revolution, signer of the Declaration of Independence, b. Braintree, Mass. From an uncle he inherited Boston's leading mercantile firm, and n...