U.S Constitution By msparra22225 May 25, 1787 1787 Period: May 25, 1787 to Sep 17, 1787 May 25 1787 Started writing the U.S Constitution and ended up signing the U.S Constitution 1789 Federal Government Period: Jan 7, 1789 to Mar 4, 1789 The Federal Branches Legislative, Executive, and Judicial Period: Oct 2, 1789 to Dec 15, 1791 Bill of Rights Dec 15, 1791 The Bill of Rights The Bill of Rights was written and ratified on December 15, 1791. Has the first 10 Amendments.