The fourth and last page of the original handwritten text of the United States Constitution, which took almost four months to draft and over three years to ratify. The first Constitutional Convention began on May 25, 1787, with a quorum at the Pennsylvania State House in Philadelphia to revise the Articles of Confederation. Instead the delegates wrote a new constitution, finishing on September 17 of that year, but its ratification by all 13 states was not completed until January 10, 1791. Since then 27 amendments have been made.
Read further: Page 1, Page 2, Page 3Document: Constitutional Convention; scan: National Archives