Timeline of drafting and ratification of the United States Constitution Timeline of drafting and ratification of the United States Constitution The drafting of the Constitution of the United States began on May 25, 1787, when the Constitutional Convention met for the first time with a quorum at the Pennsylvania State House (now Independence Hall) in Philadelphia, Pennsylvania to revise the Articles of Confederation, and ended on September 17, 1787, the day the Constitution drafted by the convention's delegates to replace the Articles was adopted and signed. The ratification process for the Constitution began that day, and ended when the final state, Rhode Island, ratified it on May 29, 1790. In
History of the United States Constitution Confederation. Massachusetts' Rufus King assessed the Convention as a creature of the states, independent of the Articles Congress, submitting its proposal to Congress only to satisfy forms. Though amendments were debated, they were all defeated. On September 28, 1787, the Articles Congress resolved "unanimously" to transmit the Constitution to state legislatures for submitting to a ratification convention according to the Constitutional procedure. Several states enlarged the numbers qualified just for electing ratification delegates. In doing so, they went beyond the Constitution's provision for the most voters for the state legislature. Delaware, on December 7, 1787, became the first State to