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Erie Canal

(Encyclopedia)Erie Canal, artificial waterway, c.360 mi (580 km) long; connecting New York City with the Great Lakes via the Hudson River. Locks were built to overcome the 571-ft (174-m) difference between the leve...

Tripolitan War

(Encyclopedia)Tripolitan War trĭpŏlˈĭtən [key], 1800–1815, conflict between the United States and the Barbary States. Piracy had become a normal source of income in the N African Barbary States long before t...

Frémont, John Charles

(Encyclopedia)Frémont, John Charles, 1813–90, American explorer, soldier, and political leader, b. Savannah, Ga. He taught mathematics to U.S. naval cadets, then became an assistant on a surveying expedition (18...

Jacksonville

(Encyclopedia)Jacksonville. 1 City (1990 pop. 29,101), Pulaski co., central Ark., inc. 1941. The city has varied industries, including printing and publishing and the manufacture of electronic equipment, ordnance, ...

Kansas-Nebraska Act

(Encyclopedia)Kansas-Nebraska Act, bill that became law on May 30, 1854, by which the U.S. Congress established the territories of Kansas and Nebraska. By 1854 the organization of the vast Platte and Kansas river c...

Kemble, Roger

(Encyclopedia)Kemble, Roger, 1721–1802, English actor and manager. During his years as the leader of a traveling company, he married (1753) Sarah Wood, 1735–1806, an actress. They had 12 children, thus founding...

Transylvania

(Encyclopedia)Transylvania trănˌsĭlvāˈnyə [key], Rom. Transilvania or Ardeal, Hung. Erdély, Ger. Siebenbürgen, historic region and province (21,292 sq mi/55,146 sq km), central Romania. A high plateau, Tran...

Papal States

(Encyclopedia)Papal States, Ital. Lo Stato della Chiesa, from 754 to 1870 an independent territory under the temporal rule of the popes, also called the States of the Church and the Pontifical States. The territory...

scale, in music

(Encyclopedia)scale, in music, any series of tones arranged in a step-by-step rising or falling order of pitch. A scale defines the interval relationship of each tone to the others upon which the composition depend...

commune, in medieval history

(Encyclopedia)commune kômˈyo͞on [key], in medieval history, collective institution that developed in continental Europe after the fall of the Roman Empire. Because of the importance of the commune in municipal g...