sentences:  The British forcibly halted the trade with Africa by the 1850s, and the country then became dependent on an internal slave labor force as well as Spanish and Italian immigrant workers.Nonetheless, despite laws banning their importation, between 1808 and 1888 more than a million new slaves were forcibly shipped to Brazil.The slaves who were freed and returned to Africa, the Agudás, continued to be seen as slaves by the African indigenous population.