How many states were needed to approve the constitution?

On September 1787, Congress directed the state legislatures to call ratification conventions in each state. Article VII stipulated that nine states had to ratify the Constitution for it to go into effect.

• Delaware - December 7, 1787.

• Pennsylvania - December 12, 1787.

• New Jersey - December 18, 1787.

• Georgia - January 2, 1788.

• Connecticut - January 9, 1788.

• Massachusetts - February 6, 1788.

• Maryland - April 28, 1788.

• South Carolina - May 23, 1788.

• New Hampshire - June 21, 1788

The Constitution was officially adopted by the United States when it was ratified by New Hampshire on June 21, 1788, the ninth state to do so

Nine states

Instead, on September 28, Congress directed the state legislatures to call ratification conventions in each state. Article VII stipulated that nine stateshad to ratify the Constitution for it to go into effect. Aug 21, 2016