He vice president of the united states
Lincoln wanted all the Confederate States to join back the union and he did that by issuing the Emancipation Proclamation which basically stated that if the Confederate states did not join the Union by January 1, 1863 then all slaves would be freed.
The answer would be an explorer
It was Spain due to that it was controlled by the many Muslim Caliphates but the Reconquista end those 800 years of Muslim population in Spain