It was a compromise made in 1820 between the Free States and the Slave States. The country admitted two new states into the union, Maine and Missouri. Maine would be a free state while Missouri would be a slave state, thus maintaining the balance between these two factions.
Calvin Coolidge said, "The chief of business of the American people is business"
On that day, some 156,000 American, British, and Canadian forces landed on five beaches along the Normandy coast of France in the largest amphibious military assaults in history. Over 4,000 Allied troops were confirmed dead and thousands were wounded or missing.