What major concept did the Great Compromise establish?

The Great Compromise, also known as the Connecticut Compromise, established a bicameral legislature, which consists of two houses: the House of Representatives and the Senate. This arrangement was significant because it balanced the interests of states with larger populations, which would benefit from representation based on population in the House, and those with smaller populations, which would be ensured equal representation in the Senate, with two senators from each state regardless of size.

This compromise was crucial during the Constitutional Convention of 1787, as it helped to resolve a contentious debate between advocates of a purely proportional representation model, who wanted larger states to have greater influence due to their populations, and those who argued for equal representation to protect the interests of smaller states. The solution provided by the Great Compromise enabled various states to come together and ultimately facilitated the ratification of the U.S. Constitution, thus laying the foundation for the legislative structure of the United States government.