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This Day in American History

January 9

1 historic event on this date

Founding1788

Connecticut Ratifies the Constitution

Connecticut became the fifth state to ratify the United States Constitution by a vote of 128 to 40. Connecticut delegates strongly supported the "Great Compromise" that created a bicameral legislature with proportional representation in the House and equal representation in the Senate.

Why It Matters

Connecticut's ratification and its delegates' central role in the Great Compromise helped ensure that both large and small states would have meaningful representation in the new government.

Explore the Principles Behind the History

Every event in American history connects to the founding principles. Discover the ideas that shaped these moments.

View the 28 Founding Principles