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Mapp v. Ohio

(Encyclopedia)Mapp v. Ohio, case decided in 1961 by the U.S. Supreme Court. Dollree Mapp was convicted in a state court of possessing pornographic material in violation of Ohio law. Her conviction was obtained on t...

All-American Canal

(Encyclopedia)All-American Canal, 80 mi (129 km) long, SE Calif.; part of the federal irrigation system of the Hoover Dam. Built between 1934 and 1940 across the Colorado Desert, the canal is entirely within the Un...

Circleville

(Encyclopedia)Circleville, city (2020 pop. 14,182), seat of Pickaway co., S central Ohio, on the Scioto River; inc. 1853. Corn, hogs, and poultry are processed in the...

Niagara, river, United States and Canada

(Encyclopedia)Niagara nīăgˈrə [key], river, 34 mi (55 km) long, issuing from Lake Erie between Buffalo, N.Y., and Fort Erie, Ont., Canada. It flows north around Grand Island and over Niagara Falls to Lake Ontar...

Muskingum

(Encyclopedia)Muskingum məskĭngˈgəm [key], river, 111 mi (179 km) long, formed in NE Ohio, at Coshocton, by the union of the Walhonding and Tuscarawas rivers and flowing S through Zanesville, then SE to the Ohi...

Canal du Midi

(Encyclopedia)Canal du Midi känälˈ dü mēdēˈ [key], canal, c.150 mi (240 km) long, linking Sète and Toulouse, S France. It was built to carry oceangoing ships between the Atlantic Ocean and the Mediterranean...

Trent Canal

(Encyclopedia)Trent Canal, waterway system, 240 mi (386 km) long, S Ont., Canada, connecting Lake Ontario, from the Bay of Quinte, with Lake Huron at Georgian Bay; built 1833–48. It utilizes the Trent River to Ri...

Ohio Company of Associates

(Encyclopedia)Ohio Company of Associates, organization for the purchase and settlement of lands on the Ohio River, founded at Boston in 1786. Its organizers were a group of New England men, most of them former Amer...

Kaiser Wilhelm Canal

(Encyclopedia)Kaiser Wilhelm Canal: see Kiel Canal. ...

Panama Canal Zone

(Encyclopedia)Panama Canal Zone, former territory within Panama, 553 sq mi (1,432 sq km), that was administered by the United States under a 1903 treaty (with later amendments) with Panama. The zone included the Pa...