This Day In History

 

September 17, 1787

The Constitution of the United States of America is signed by 39 delegates present at the conclusion of the Constitutional Convention in Philadelphia. Supporters of the document waged a hard-won battle to win ratification by the necessary nine out of 13 U.S. states.

Taken from: https://www.history.com/this-day-in-history/september-17/u-s-constitution-signed