Slavery in the colonial United States Slavery in the colonial United States Slavery in the colonial area which later became the United States (1600–1776) developed from complex factors, and researchers have proposed several theories to explain the development of the institution of slavery and of the slave trade. Slavery strongly correlated with Europe's American colonies' need for labor, especially for the labor-intensive plantation economies of the sugar colonies in the Caribbean, operated by Great Britain, France, Spain, and the Dutch Republic. Most slaves who were brought or kidnapped to the Thirteen British colonies - the Eastern seaboard of what later became the United States - were
United States Declaration of Independence another copy incorporating these alterations. The committee presented this copy to the Congress on June 28, 1776. The title of the document was "A Declaration by the Representatives of the United States of America, in General Congress assembled." Congress ordered that the draft "lie on the table" and then methodically edited Jefferson's primary document for the next two days, shortening it by a fourth, removing unnecessary wording, and improving sentence structure. They removed Jefferson's assertion that Great Britain had forced slavery on the colonies in order to moderate the document and appease persons in Great Britain who supported the Revolution.