Out of the 55 delegates who signed the U.S. Constitution in 1787, 39 were considered slave owners. The presence of slavery was a contentious issue during the Constitutional Convention, with. September 17, 1787 July 4, 1776 in 1788 it was drafted in 1787 and the congress declared it would go into effect the following year. _Courtney_ How many people signed the original constitution from the state of Pennsylvania? No, the American Revolution lasted from 1775 until 1783 when the United States and Britain signed the Treaty of Paris. The Constitution was created in 1782 and The Continental Congress sent the. The Constitution was signed at Independence Hall on September 17, 1787. But the signatures that are even more important are those given by the states as it was being considered for ratification. On September 17, 1787, the final draft of the Constitution was signed by congress. The new constitution was then sent to the states for ratification, and became effective on June 21, 1788. The constitution is the document that establishes the laws of United States, and is the supreme law in this country. It was ratified by the various states in 1787 and 1788, and became law in 1789. Absolutely not. The Declaration of Independence was (largely) signed in 1776, while the Constitution wasn't signed until 1787.