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North Africa, campaigns in

(Encyclopedia)North Africa, campaigns in, series of military contests for control of North Africa during World War II. The desert war started in 1940 and for more than two years thereafter seesawed between NE Libya...

Oregon Trail

(Encyclopedia)Oregon Trail, overland emigrant route in the United States from the Missouri River to the Columbia River country (all of which was then called Oregon). The pioneers by wagon train did not, however, fo...

Donner Party

(Encyclopedia)Donner Party, group of emigrants to California who in the winter of 1846–47 met with one of the most famous tragedies in Western history. The California-bound families were mostly from Illinois and ...

chain

(Encyclopedia)chain, flexible series of connected links used in various ways, especially for the transmission of motive power, for hoisting (see pulley), and for securing or fastening. Commonly, mechanical energy f...

intestine

(Encyclopedia)intestine, muscular hoselike portion of the gastrointestinal tract extending from the lower end of the stomach (pylorus) to the anal opening. In humans this fairly narrow (about 1 in./2.5 cm) tubelike...

Pamir

(Encyclopedia)Pamir pəmērˈ, pä– [key] or Pamirs, mountainous region of central Asia, located mainly in Tajikistan and extending into NE Afghanistan and SW Xinjiang Uygur Autonomous Region, China; called the �...

Klondike

(Encyclopedia)Klondike klŏnˈdīk [key], region of Yukon, NW Canada, just E of the Alaska border. It lies around Klondike River, a small stream that enters the Yukon River from the east at Dawson. The discovery in...

Brownsville

(Encyclopedia)Brownsville, city (2020 pop. 186,738), seat of Cameron co., extreme S Tex., on the Rio Grande c.17 mi (30 km) from its mouth at the Gulf of Mexico; inc....

spinal cord

(Encyclopedia)spinal cord, the part of the nervous system occupying the hollow interior (vertebral canal) of the series of vertebrae that form the spinal column, technically known as the vertebral column. Extending...

Mississippi, river, United States

(Encyclopedia)Mississippi, river, principal river of the United States, c.2,350 mi (3,780 km) long, exceeded in length only by the Missouri, the chief of its numerous tributaries. The combined Missouri-Mississippi ...