Alexander Hamilton signed for New York.
Until July 21, 1788, the day the Constitution was officially ratified.
The 9th state was New Hampshire, and only 9 were required to ratify in order for the Constitution to take effect. The other 4 states did eventually ratify as well.New Hampshire
To ratify an amendment to the U.S. Constitution today, three-fourths of the states must approve it. This means that out of the 50 states, at least 38 must ratify the amendment for it to become part of the Constitution. The process is outlined in Article V of the Constitution.
The requirement of ratification by nine states (in order for the Constitution to take effect), set by Article Seven of the Constitution, was met when New Hampshire voted to ratify, on June 21, 1788.
9 out of 13 states were needed to ratify the constitution
== == 2 months
9
All 13 states had to ratify the US Constitution for it to take effect.
The Constitutional Convention in which the constitution was created began on May 25, 1787 and its final session was on September 17, 1787. At this time the delegates from each state decided whether to ratify it or not.
three-fourths of the states had to ratify the constitution for it to take effect.
north carolina and rhode island
In 1790 eleven states raitfied the constitution so that it could take effect. It took ten months for them to get eleven states to actually raitfy the constitution.