Question

The constitution of the United States was ratified on (ASAP)

Answer 1

September 17, 1787

On September 17, 1787, a majority of the delegates to the Constitutional Convention approved the documents over which they had labored since May.

Hope this helps you. :)

Answer 2

On June 21, 1788, the Constitution became the official framework of the government of the United States of America when New Hampshire became the ninth of 13 states to ratify it.