Lord Dunmore, the royal governor of the Colony of Virginia, signed a proclamation promising freedom for the slaves of Patriots if they joined the British Armed Forces.

John Murray, 4th Earl of Dunmore was a British Army officer and colonial administrator who served as the governor of Virginia from 1771 to 1775. Dunmore was named governor of New York in 1770. He succeeded to the same position in the colony of Virginia the following year after the death of Norborne Berkeley, 4th Baron Botetourt. As Virginia's governor, Dunmore directed a series of campaigns against the trans-Appalachian Indians, known as Lord Dunmore's War. He is noted for issuing a 1775 document, Dunmore's Proclamation, offering freedom to slaves who fought for the British Crown against Patriot rebels in Virginia. Dunmore fled to New York after the burning of Norfolk in 1776 and later returned to Britain. He was Governor of the Bahamas from 1787 to 1796.

The Colony of Virginia was a British colonial settlement in North America from 1606 to 1776.

Dunmore's Proclamation is a historical document signed on November 7, 1775, by John Murray, 4th Earl of Dunmore, royal governor of the British colony of Virginia. The proclamation declared martial law in the colony, and promised freedom for "all indented servants, negroes, or others", who joined the British Army. Most relevant historians agree that the proclamation was chiefly designed for practical rather than moral reasons.

The legal institution of human chattel slavery, comprising the enslavement primarily of Africans and African Americans, was prevalent in the United States of America from its founding in 1776 until 1865, predominantly in the South. Slavery was established throughout European colonization in the Americas. From 1526, during the early colonial period, it was practiced in what became Britain's colonies, including the Thirteen Colonies that formed the United States. Under the law, children were born into slavery, and an enslaved person was treated as property that could be bought, sold, or given away. Slavery lasted in about half of U.S. states until abolition in 1865, and issues concerning slavery seeped into every aspect of national politics, economics, and social custom. In the decades after the end of Reconstruction in 1877, many of slavery's economic and social functions were continued through segregation, sharecropping, and convict leasing. Involuntary servitude as a punishment for crime remains legal.