On what date was the Constitution signed by the delegates?

The Constitution of the United States was signed by the delegates on September 17, 1787. This date is significant as it marks the culmination of the Constitutional Convention, where delegates from various states gathered in Philadelphia to draft a new governing document intended to replace the Articles of Confederation.

The signing of the Constitution was a pivotal moment in American history, as it established a framework for the federal government and outlined the rights and responsibilities of the states and the central authority. Following its signing, the Constitution needed to be ratified by the states before it could take effect, which is why other dates in the choices appear relevant but do not pertain to the actual signing. For example, July 4, 1776, is significant as the date of the Declaration of Independence, and March 4, 1789, is when the Constitution officially went into effect after being ratified. However, September 17, 1787, is the correct date associated directly with the signing of the document itself.