Despite its importance, many Americans may be surprised to discover how little they know about the Constitution and its history. It may be shocking to learn that the Constitution replaced another document that only lasted a few years as the basis of our government’s structure. While some states were immediately on board, others took months to agree to the Constitution. One stipulation that helped was that amendments would be added nearly immediately to help determine how the American government should work. Keep reading to test your knowledge about one of the most important documents in American history.