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
Grand River land dispute North American colonists. However, individual member governments are free to make individual alliances. July 4, 1776 Second Continental Congress adopts Declaration of Independence. Beginning of American War of Independence. 1778 Mohawk, Onondaga, Cayuga and Seneca nations enter alliance with British Empire, in exchange for a guarantee of sovereign territory. They appoint Chief Joseph Brant as their War Chief. Oneida and Tuscarora nations negotiate a similar arrangement with rebel colonies. 1783 Britain enters into Treaty of Paris with United States of America. Neither Mohawk, Onondaga, Cayuga or Seneca are parties to this treaty. However, Great Britain unilaterally cedes these nations' territory