It took one year and 42 days.
First, had the Confederacy won the Civil War, slavery would have undoubtedly continued in the South. As a result of the Emancipation Proclamation and the Union victory, slavery was abolished. ... A victory by the North did equate to the end of slavery. A victory by the South would have meant the opposite.
During the Civil War the northerners fought because they were against slavery, the southerners fought because the slaves did the work for them.
It allowed the independent Soviet nations and satelite states to choose democracy over communism