The lawful infliction of death as a punishment; the death penalty.

Capital punishment continues to be used in the United States despite controversy over its merits and over its effectiveness as a deterrent to serious crime. A sentence of death may be carried out by one of five lawful means: electrocution, hanging, lethal injection, gas chamber, and firing squad. As of 2003, 38 states employed capital punishment as a sentence; 12 states—Alaska, Hawaii, Iowa, Maine, Massachusetts, Michigan, Minnesota, North Dakota, Rhode Island, Vermont, West Virginia, and Wisconsin—and the District of Columbia did not.

The first known infliction of the death penalty in the American colonies occurred in Jamestown Colony in 1608. During the period of the Revolutionary War, capital punishment apparently was widely accepted—162 documented executions took place in the eighteenth century. At the end of the war, 11 colonies wrote new...