Columbia Encyclopedia

Search results

500 results found

Bronze Age

(Encyclopedia)Bronze Age, period in the development of technology when metals were first used regularly in the manufacture of tools and weapons. Pure copper and bronze, an alloy of copper and tin, were used indiscr...

Golden Bull

(Encyclopedia)Golden Bull, term translated from the Latin bulla aurea and generally referring to a bull (edict) with a golden seal. Golden bulls were promulgated by medieval Byzantine rulers and by Western European...

Golden Section

(Encyclopedia)CE5 Rectangle ABCD is a golden rectangle. Removing the square AEFD leaves the rectangle EBCF Golden Section, in mathematics, division of a line segment into two segments such that the ratio of the...

Early, Jubal Anderson

(Encyclopedia)Early, Jubal Anderson, 1816–94, Confederate general, b. Franklin co., Va., grad. West Point, 1837. After fighting against the Seminole in Florida he resigned from the army (1838), studied law, and p...

Golden Gate

(Encyclopedia)Golden Gate, strait, 4 mi (6.4 km) long and 1 to 2 mi (1.6–3.2 km) wide, linking San Francisco Bay with the Pacific Ocean. It was discovered in 1579 by the English explorer Sir Francis Drake. Known ...

golden retriever

(Encyclopedia)golden retriever, breed of large sporting dog developed primarily in Scotland in the mid-19th cent. It stands about 23 in. (58.4 cm) high at the shoulder and weighs from 60 to 75 lb (27.2–34.1 kg). ...

North Little Rock

(Encyclopedia)North Little Rock, city (1990 pop. 61,741), Pulaski co., central Ark., on the Arkansas River opposite Little Rock; settled c.1856, inc. as a city 1903. North Little Rock lies in a cotton, rice, soybea...

Golden Rectangle

(Encyclopedia)Golden Rectangle: see Golden Section. ...

Plymouth Rock chicken

(Encyclopedia)Plymouth Rock chicken, one of the most popular early breeds of poultry. The Barred Plymouth Rock was a favorite farm chicken since it was both a good egg producer and also developed a large quantity o...

rock garden

(Encyclopedia)rock garden, garden planned around natural rock formations or rocks artificially arranged to simulate natural (often mountainous) conditions. The concept of rock gardens is believed to have been intro...