Not let them fall to communism which was all around them Japan china Russia but the closes was Cuba
We know this thanks to archaeologists who excavated many places and discovered that many early civilizations gathered around large rivers where they could develop agriculture. This was seen in places such as Mesopotamia, India, China, Egypt, etc.
The compromise helped gather enough support for the Constitution to ensure its ratification and for it to go to the adoption of the first ten amendments and the Bill of Rights. Anti-Federalists were scared that the Constitution would make the government overly-confertalized and that it would diminish individual rights and liberties.
I hope this helped, im quite young so theres only so much I know.. :)