The correct answer is men
<span>Both Abraham Lincoln, who was a key figure in creating political legislation in support of Black rights in the Reconstruction, and Andrew Johnson, who pardoned large numbers of slaveowners, were dead by 1877 - Lincoln in 1865 and Johnson in 1875.</span>
prior to European colonization in Africa, slavery had already existed between the people there, slave owners would willingly offer their slaves to the Europeans in order to protect them selves, the europeans can argue that they did not establish slavery, rather, they continued work that seemed beneficial to them.