 After achieving independence, northern states in the U.S. had begun to abolish slavery as early as 1793, but slavery was not abolished in the South until 1865, following the American Civil War.Black immigration to Canada in the twentieth century consisted mostly of Caribbean descent.As a result of the prominence of Caribbean immigration, the term "African Canadian", while sometimes used to refer to the minority of Canadian blacks who have direct African or African-American heritage, is "not" normally used to denote black Canadians.