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fugitive slave laws

(Encyclopedia)fugitive slave laws, in U.S. history, the federal acts of 1793 and 1850 providing for the return between states of escaped black slaves. Similar laws existing in both North and South in colonial days ...

Slave

(Encyclopedia)Slave, river, c.310 mi (500 km) long, Northwest Territories, Canada. It comprises the middle sections of the Mackenzie River system. The river channels the waters of Lake Athabasca and the Peace River...

Slave Coast

(Encyclopedia)Slave Coast, name given by European traders to the coast bordering the Bight of Benin on the Gulf of Guinea, W Africa. It was the principal source of slaves from W Africa from the 16th cent. to the mi...

Slave dynasty

(Encyclopedia)Slave dynasty: see Delhi Sultanate. ...

Underground Railroad

(Encyclopedia)Underground Railroad, in U.S. history, loosely organized system for helping fugitive slaves escape to Canada or to areas of safety in free states. It was run by local groups of Northern abolitionists,...

Compromise of 1850

(Encyclopedia)Compromise of 1850. The annexation of Texas to the United States and the gain of new territory by the Treaty of Guadalupe Hidalgo at the close of the Mexican War (1848) aggravated the hostility betwee...

Crittenden Compromise

(Encyclopedia)Crittenden Compromise, in U.S. history, unsuccessful last-minute effort to avert the Civil War. It was proposed in Congress as a constitutional amendment in Dec., 1860, by Sen. John J. Crittenden of K...

liquor laws

(Encyclopedia)liquor laws, legislation designed to restrict, regulate, or totally abolish the manufacture, sale, and use of alcoholic beverages. The passage of liquor laws has been prompted chiefly by the desire to...

Kirchhoff's laws

(Encyclopedia)Kirchhoff's laws [for Gustav R. Kirchhoff], pair of laws stating general restrictions on the current and voltage in an electric circuit. The first of these states that at any given instant the sum of ...

Kepler's laws

(Encyclopedia)CE5 Schematic representation of Kepler's second law: The areas ABF and A′B′F′ are equal and are swept out in equal intervals of time by a planet orbiting around the sun (at F). Kepler's laws...