Columbia Encyclopedia

(Encyclopedia) states' rights, in U.S. history, doctrine based on the Tenth Amendment to the Constitution, which states, “The powers not delegated to the United States by the Constitution, nor prohibited by it to ...

(Encyclopedia) Washington, D.C., capital of the United States, coextensive (since 1878, when Georgetown became a part of Washington) with the District of ...

(Encyclopedia) Miocene epoch mīˈəsēn [key], fourth epoch of the Tertiary period in the Cenozoic era of geologic time (see Geologic Timescale, tablegeologic timescale, table), lasting from around 24.6 to 5.1 mill...

(Encyclopedia) Pontiac's Rebellion, Pontiac's Conspiracy, or Pontiac's War, 1763–66, Native American uprising against the British just after the close of the French and Indian Wars, so called after one of its lea...

(Encyclopedia) South, the, region of the United States embracing the southeastern and south-central parts of the country. Traditionally, all states S of the Mason-Dixon Line and the Ohio River (except West Virginia)...

(Encyclopedia) National Association for the Advancement of Colored People (NAACP), organization composed mainly of American blacks, but with many white members, whose goal is the end of racial discrimination and seg...

(Encyclopedia) Webster, Daniel, 1782–1852, American statesman, lawyer, and orator, b. Salisbury (now in Franklin), N.H. As a U.S. Senator from Massachusetts (1827–41), he became a leading political figure of t...

(Encyclopedia) Gettysburg campaign, June–July, 1863, series of decisive battles of the U.S. Civil War. The Gettysburg battles included more than 160,000 soldiers and many camp laborers. These included thousands ...

(Encyclopedia) Lewinsky scandal ləwĭnˈskē [key], sensation that enveloped the presidency of Bill Clinton in 1998–99, leading to his impeachment by the U.S. House of Representatives and acquittal by the Senate....

(Encyclopedia)  CE5 Northwest Territory Northwest Territory, first possession of the United States, comprising the region known as the Old Northwest, S and W of the Great Lakes, NW of the Ohio River, and E of the...