The American Revolution was between the redcoats from Britain and the colonists from the Continental Army. The Continental Army won and became its own country that had 13 states.
Delegates thought the colonies needed to be united by a national government, some people thought they weren't a citizen of a nation, but a citizen of their state. In 1777 congress had approved the first American constitution called the "Articles of Confederation.
Lower house -Be elected by popular vote -Seats in the lower house would be awarded to the states (according to size)
After the nation went into a depression, farmers couldn't pay their loans since prices were falling. In Massachusetts, tax prices were being raised so this made the situation even worse. Farmers started to loose their farms because of this, and Daniel Shays, who was a farmer from Massachusetts who also fought in Bunker Hill and Saratoga, and over 1000 other farmers attacked courthouses, which is now knows as Shay's Rebellion.
After what happened during Shay's Rebellion, leaders from states created a convention called the Constitutional Convention where they would revise the Articles of Confederation. Instead of just revising them, they created a whole new one in May of 1787. Every state had sent representatives, except for Rhode Island.
Roger Sherman had come up with this agreement that would make both the small and the large states happy. On July 16, the delegates approved this plan and it is now called the Great Compromise.
Upper house -Be chosen by state legislatures -Each state (all sizes) would have 2 senators
If all slaves were counted in population counts, the southern states would end up having more representatives. Since slaves could not vote, the Northern states thought that they should not be counted. The delegates had compromised that three fifths of slaves in any state, could be counted as part of the population. This compromise is known as the Three-Fifths Compromise.