In the War of 1812, caused by British restrictions on U.S. trade and America’s desire to expand its territory, the United States took on the greatest naval power in the world, Great Britain.
The Great Compromise Allowed House of Representatives to be based on each state's population and a Senate with two representatives from each state. This was a combo of Virginia Plan and New Jersey Plan.
The main reason we didn't join the League of nations is because we had the policy of isolationism
isolationism = America wants to focus on ourselves, we want to stay out of trouble