225 years ago today, our Constitution was signed. In honor of this important day in our Nation's history, let's see how much of our history you know. I'm talking basics. If you're up to the challenge, take a practice Naturalization Test HERE. Or if you're feeling particularly sharp, take a practice Constitution Test HERE.

This is a good way to test your memory & brush up on some facts.

Get more info on the signing of the Constitution HERE.

Read Ben Franklin's thoughts on the Constitution HERE.