Carib Indians aggressively prevented European settlement on St. Vincent until the 18th century. Enslaved Africans - whether shipwrecked or escaped from Barbados, St. Lucia and Grenada and seeking refuge in mainland St. Vincent, or Hairouna as it was originally named by the Caribs - intermarried with the Caribs and became known as Garifuna or Black Caribs.

In 1763, St. Vincent was ceded to Britain. Restored to French rule in 1779, St. Vincent was regained by the British under the Treaty of Paris (1783) in which Great Britain officially recognized the end of the American Revolution. Ancillary treaties were also signed with France and Spain, known as the Treaties of Versailles of 1783, part of which put St. Vincent back under British control.

Conflict between the British and the Black Caribs, led by defiant Paramount Chief Joseph Chatoyer, continued until 1796, when General Sir Ralph Abercromby crushed a revolt fomented by the French radical Victor Hugues. More than 5,000 Black Caribs were eventually deported to Roatán, an island off the coast of Honduras. 

From 1763 until independence, St. Vincent passed through various stages of colonial status under the British. A representative assembly was authorized in 1776, Crown Colony government installed in 1877, a legislative council created in 1925, and universal adult suffrage granted in 1951.

The country gained independence from Britain on October 27, 1979, instituted a Parliamentary Democracy on the Westminister model, and has remained a part of the Commonwealth. Queen Elizabeth II is the head of state and is represented by the Governor General.