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Baltimore & Ohio Railroad

(Encyclopedia)Baltimore & Ohio Railroad (B&O), first U.S. public railroad, chartered in 1827 by a group of Baltimore businessmen to regain trans-Allegheny traffic lost to the newly opened Erie Canal. Constr...

Chesapeake & Ohio Railway

(Encyclopedia)Chesapeake & Ohio Railway (C&O), former U.S. transportation company with railroad lines in eight states, Washington, D.C., and Ontario, Canada. Founded as the Louisa RR Company in Virginia in ...

Baltimore

(Encyclopedia)Baltimore, city (2020 pop. 575,584), N central Md., surrounded by but politically independent of Baltimore co., on the Patapsco River estuary, an arm of...

AMP

(Encyclopedia)AMP: see adenosine monophosphate. ...

railroad

(Encyclopedia)railroad or railway, form of transportation most commonly consisting of steel rails, called tracks, on which trains of freight cars, passenger cars, and other rolling stock are drawn by one locomotive...

Pennsylvania Railroad

(Encyclopedia)Pennsylvania Railroad, former U.S. transportation company; inc. 1846 by the Pennsylvania legislature. It opened in 1854 as a single-track line between Philadelphia and Pittsburgh. Beginning in 1857, t...

Baltimore, David

(Encyclopedia)Baltimore, David bôlˈtĭmôr [key], 1938–, American microbiologist, b. New York City, Ph.D. Rockefeller Univ., 1964. He conducted (1965–68) virology research at the Salk Institute before becomin...

Ohio and Erie Canal

(Encyclopedia)Ohio and Erie Canal, former waterway of Ohio, 307 mi (494 km) long, between Lake Erie at Cleveland and the Ohio River at Portsmouth; built 1825–32. It utilized part of the courses of the Cuyahoga, M...

Baltimore oriole

(Encyclopedia)Baltimore oriole: see oriole.

Ohio Company

(Encyclopedia)Ohio Company, organization formed (1747) to extend settlements of Virginia westward. The members were mostly Virginia planters interested in land speculation and the fur trade. A royal charter (1749) ...