 As slavery continued after the Revolution, primarily in the South, prominent men such as Presidents Thomas Jefferson and James Madison, both slave owners, believed the emigration of free Blacks to colonies either within or outside the United States was the easiest and most realistic solution to the race problem in America.It was a means of providing an alternative for free blacks, rather than absorbing a large population of ex-slaves into the white community through emancipation.Attempts to settle American Blacks in other parts of the world had encountered many difficulties, including the British attempt to colonize Sierra Leone.