865. Moreover, slavery still persisted, indeed flourished, in Brazil and Cuba and in the United States (although confined, of course, by this time to the South). Indeed, as a result of the expansion of the frontier in all these remaining slave states during the first half of the nineteenth century, slavery existed over a larger area geographically than at any time in its history. And more Africans and Afro-Americans, some six million, were held in captivity; that is to say, more than twice as many as at the time of the 'first emancipation' in Haiti in 179