Answer:
1860's
Explanation:
Slavery officially ended in the United States on December 6, 1865, after the 13th amendment to the constitution was passed and ratified, abolishing slavery across the nation. The 13th amendment states that nobody should work as a slave or involuntary servant, except if forced by law as punishment for a crime committed.
Answer:
The president Abraham Lincoln
Explanation:
By passing an amendment.
