The Emancipation Proclamation Ended Slavery in the United States
It only makes sense that we'd think of the Emancipation Proclamation as the law that freed the slaves; "emancipation" is right there in the title. It's like calling something the "Patriot Act" and then not legislating that everyone wear American flags capes, festoon their cars with airbrushed bald eagles and sing that Lee Greenwood song at dinner every night. Of course the Emancipation Proclamation freed the slaves. What else would it do?
"The right to vote? Don't push it, guys."
Why it's Bullshit:
It freed some of them. Thanks to a loophole, about a million individuals were still legally slaves after the EP (there were about four million slaves in captivity at the time; it declared three million of them free). The loophole was that the proclamation only applied to states and territories "in rebellion against the United States." In short, if you were a slave in Delaware, Kentucky or even the recently-captured Confederate territories of New Orleans or Tennessee ... sorry, but your freedom-princess was in another castle.
"You got an emancipation proclamation! Collect four pieces total. More documents mean more freedom!"
Why did Lincoln only go half-way? Because as far as political waffling goes, the Emancipation Proclamation was Lincoln's masterpiece. Yes, Lincoln personally detested slavery, but abolition was still a touchy subject on account of four border states remaining loyal to the Union while still being hardcore slave states. There was also the matter of turning the war into a crusade to end slavery, which frankly was not the kind of thing your average Northerner would gladly have his head exploded over.