Columbia Encyclopedia

Search results

410 results found

organ

(Encyclopedia)CE5 Organ organ, a musical wind instrument in which sound is produced by one or more sets of pipes controlled by a keyboard, each pipe producing only one pitch by means of a mechanically produced ...

Antietam campaign

(Encyclopedia)Antietam campaign ăntēˈtəm [key], Sept., 1862, of the Civil War. After the second battle of Bull Run, Gen. Robert E. Lee crossed the Potomac to invade Maryland and Pennsylvania. At Frederick, Md.,...

McClellan, George Brinton

(Encyclopedia)McClellan, George Brinton, 1826–85, Union general in the American Civil War, b. Philadelphia. After graduating (1846) from West Point, he served with distinction in the Mexican War and later worked ...

Portuguese language

(Encyclopedia)CEE Portuguese language, member of the Romance group of the Italic subfamily of the Indo-European family of languages (see Romance languages). It is the mother tongue of about 170 million people, c...

Bristol, cities, United States

(Encyclopedia)Bristol. 1 Industrial city (2020 pop. 60,833), Hartford co., central Conn., on the Pequabuck River; settled 1727, inc. 1785. Its clock-making ...

Stevens, Thaddeus

(Encyclopedia)Stevens, Thaddeus, 1792–1868, U.S. Representative from Pennsylvania (1849–53, 1859–68), b. Danville, Vt. He taught in an academy at York, Pa., studied law, and was admitted to the bar in Marylan...

sunspots

(Encyclopedia)sunspots, dark, usually irregularly shaped spots on the sun's surface that are actually solar magnetic storms. The spots are darker because the temperature of the spots is lower than that of the surro...

radar

(Encyclopedia)radar, system or technique for detecting the position, movement, and nature of a remote object by means of radio waves reflected from its surface. Although most radar units use microwave frequencies, ...

Houston, Samuel

(Encyclopedia)Houston, Samuel, 1793–1863, American frontier hero and statesman of Texas, b. near Lexington, Va. In 1836 Houston was elected the first president of the new Republic of Texas. The independence of ...

Hall, Stuart Henry McPhail

(Encyclopedia)Hall, Stuart, 1932–2014, Jamaican-born British sociologist and cultural theorist, b. Kingston, Jamaica. Hall attended Jamaica College and moved to Eng...