Edited sentence: Address On Colonization To A Deputation Of Colored Men.However once slavery was abolished, and all races were granted equal status as citizens, a new challenge emerged.Initially, the institution of slavery helped segregate races in a hierarchical fashion, justified by notions of white supremacy.It was in the wake of such developments that white separatists began to argue with greater intensity for the need for explicitly white nations to be created.Many nationalists held race to be a defining characteristic of national identity, and thus did not desire the co-mingling of races within a single community.Washington, August 14, 1862