FUCK THE POLICE
911 EVERY DAY
The earliest form of socialism can be traced back to a couple of brothers in Rome sometime around 100BC.
Socialism, as a movement, started emerging after the French revolution. You can say that other forms of government preceded socialism and looked vaguely like it (such as the Christian communes that I mentioned), but you can't say that socialism itself existed back then.
The founders saw a difference between a democracy, and a constitutional republic. What if a majority voted to legislate everyone go to church every Sunday, or go to jail.
Better than Nazi Germany. The average case of a direct democracy is better than the average case of many other forms of governments, because a democracy is generally going to be pretty stable (it allows revolutions to flow from the ballot box rather than the point of a gun), whereas the Soviets could only stay in power through ruthless oppression. Saying that it's the worst form of government imaginable is hyperbole at best.