Final answer:
It is false that delegates from all thirteen states signed the document; only thirty-nine of the fifty-five delegates signed the Constitution. The Rhode Island delegation was absent from the convention, and the Constitution's ratification process required nine states' approval.
Step-by-step explanation:
It is false that delegates from all thirteen states signed the document known as the United States Constitution when the Constitutional Convention wrapped up in September of 1787. In fact, only thirty-nine of the fifty-five delegates signed the Constitution. The convention was initially convened to revise the Articles of Confederation, and Rhode Island did not send any delegates to participate in the convention at all. This important gathering included influential figures such as Benjamin Franklin, George Washington, and James Madison. The process of ratification required the approval of nine out of the thirteen states, which differed from the Articles of Confederation that had mandated unanimity.