Columbia Encyclopedia
Search results
76 results found
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...Susquehanna
(Encyclopedia)Susquehanna səskwĭhănˈə [key], river, 444 mi (715 km) long, rising in Otsego Lake, at Cooperstown, N.Y., and zigzagging SE and SW through E central Pa. to Chesapeake Bay near Havre de Grace, Md. ...Pittsburgh
(Encyclopedia)Pittsburgh pĭtsˈbərg [key], city (1990 pop. 369,879), seat of Allegheny co., SW Pa., at the confluence of the Allegheny and the Monongahela rivers, which there form the Ohio River; inc. 1816. A maj...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...Shenandoah valley
(Encyclopedia)Shenandoah valley, part of the Great Valley of the Appalachians, c.150 mi (240 km) long, N Va., located between the Blue Ridge and the Allegheny mts. The valley is divided into two parts by Massanutte...Langley, Samuel Pierpont
(Encyclopedia)Langley, Samuel Pierpont, 1834–1906, American scientist, b. Roxbury, Mass., received only a high school education but continued his studies in science in Boston libraries. He became, in 1866, profes...Homestead
(Encyclopedia)Homestead. 1 City (2020 pop. 80,737), Dade co., SE Fla.; inc. 1913. A large Miami suburb with a growing Hispanic population, Homestead is a trade ...Dinwiddie, Robert
(Encyclopedia)Dinwiddie, Robert, 1693–1770, colonial governor of Virginia (1751–58), b. near Glasgow, Scotland. He was collector of customs (1727–38) for Bermuda and surveyor general (1738–51) for the Baham...National Forest System
(Encyclopedia)National Forest System, federally owned reserves, c.191 million acres (77.4 million hectares), administered by the Forest Service of the U.S. Dept. of Agriculture. The system is made up of 155 nationa...West Virginia
(Encyclopedia)CE5 West Virginia, E central state of the United States. It is bordered by Pennsylvania and Maryland (N, NE), Virginia (E and S), Kentucky (W) and, across the Ohio River, Ohio (NW). Economic cond...Browse by Subject
- Earth and the Environment +-
- History +-
- Literature and the Arts +-
- Medicine +-
- People +-
- Philosophy and Religion +-
- Places +-
- Africa
- Asia
- Australia and Oceania
- Britain, Ireland, France, and the Low Countries
- Commonwealth of Independent States and the Baltic Nations
- Germany, Scandinavia, and Central Europe
- Latin America and the Caribbean
- Oceans, Continents, and Polar Regions
- Spain, Portugal, Italy, Greece, and the Balkans
- United States, Canada, and Greenland
- Plants and Animals +-
- Science and Technology +-
- Social Sciences and the Law +-
- Sports and Everyday Life +-
