Answer:Battle of Antietam
Explanation:The Union's important victory at the Battle of Antietam gave Lincoln enough public support to issue the Emancipation Proclamation, which promised to free all slaves in the Confederacy. A month before the Civil War began in April 1861, Abraham Lincoln talked about slavery in his first speech as president.
1820 was when it started not the1860
I think the answer would be the 3rd,4th,1st and 5th