Many Americans were exposed to the ideas of the federalists by the "Federalist Papers".
The Yalta Conference was held in the country of Russia in the city of Yalta, hosted by the Soviet Union.
The Civil War began when the Confederates bombarded Union Soldiers at Fort Summer. And, yes, it did start from the different views from the South and North that came with President Lincoln.
Because he was going to be a dictator on the Roman Empire.