What was the significance of the Emancipation Proclamation?

It freed all the sl**es in the United States
It freed all sl**es in the Confederacy
It declared the start of the Civil War
It ended the Civil War

The significance of the Emancipation Proclamation was that it declared all sl**es in the Confederate states to be free, effective January 1, 1863. It was a strategic decision by President Abraham Lincoln to weaken the Confederate states by depriving them of their workforce and also to show that ending sl**ery was a key goal of the Union in the Civil War. It did not immediately free all sl**es in the United States, but it set the stage for the 13th Amendment, which officially abolished sl**ery in the United States in 1865.