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Paleocene epoch

(Encyclopedia) Paleocene epochPaleocene epochpāˈlēəsēnˌ [key], first epoch of the Tertiary period in the Cenozoic era of geologic time (see geologic timescale) between 60 to 66 million years ago. In…

Mackenzie

(Encyclopedia) Mackenzie, river, c.1,120 mi (1,800 km) long, issuing from Great Slave Lake, Northwest Territories, Canada, and flowing generally NW to the Arctic Ocean through a great delta. Between…

transportation

(Encyclopedia) transportation, conveyance of goods and people over land, across water, and through the air. See also commerce. The first practical attempts at air transportation began with the…

Slideshows

From buildings to animals Related Links Animal Groups Animal Names: Male, Female, and Young Animal Group Terminology…

frontier

(Encyclopedia) frontier, in U.S. history, the border area of settlement of Europeans and their descendants; it was vital in the conquest of the land between the Atlantic and the Pacific. The…

From buildings to animals

From buildings to animals Slideshows from Tallest Buildings in the World to Moons of our Solar System. Related Links Animal Groups Animal Names: Male, Female, and…

Santa Fe Trail

(Encyclopedia) Santa Fe Trail, important caravan route of the W United States, extending c.780 mi (1,260 km) from Independence, Mo., SW to Santa Fe, N.Mex. Independence and Westport, Mo., were the…

log cabin

(Encyclopedia) log cabin or log house, style of home typical of the American pioneer on the Western frontier of the United States in the great westward expansion after 1765. It was constructed with…

willow

(Encyclopedia) willow, common name for some members of the Salicaceae, a family of deciduous trees and shrubs of worldwide distribution, especially abundant from north temperate to arctic areas. The…

bison

(Encyclopedia) bison, large hoofed mammal, genus Bison, of the cattle family. Bison have short horns and humped, heavily mantled shoulders that slope downward to the hindquarters. The European bison…