The US Bill of Rights was written in 1789 and ratified in 1791.

Key dates

  • Drafted by James Madison and introduced in Congress on June 8, 1789.
  • Congress approved 12 amendments and sent them to the states on September 25, 1789.
  • Ten of those were ratified by the states and became the Bill of Rights on December 15, 1791.

Quick Scoop

  • The phrase “when was the US Bill of Rights written” usually points to 1789, when Madison drafted and Congress approved the amendments.
  • If the question is about when it officially became part of the Constitution, the answer is December 15, 1791, the date of ratification.

Information gathered from public forums or data available on the internet and portrayed here.