What events occurred after the Civil War?
The most significant event that occurred almost immediately after the US Civil War was the assassination of US President Lincoln. His death had a negative affect on the post war reconstruction acts to mend the differences between the Southern States and the Northern States.
This was evident in his second inaugural address on March 4, 1865. In this address to the people, and in my opinion he meant everyone in the USA, the South included, he displayed a demeanor that was not was not adversarial. Instead of speaking about punishing the South he spoke about mending the rift the War had created.
He spoke this way as he knew that the War was almost over. In fact it ended only a month or so later.