I would say that the spread of democracy led to the industrial revolution because it enabled everyone to start their own businesses, thus establishing a capitalistic society whose economy was governed by industrialists.
Over 23,000 men fell as casualties in the one-day Battle of Antietam, making it the bloodiest day in American history. The Union victory at Antietam resulted in President Abraham Lincoln issuing his Preliminary Emancipation Proclamation on September 22, 1862.
That they can make their own laws to govern the people. The federal government (mostly) does not interfere. This is why people can vote for things i.e. the legalization of marijuana.
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The United States following World War II had loaned a large amount of money to help rebuild post-war Europe.
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