The Ninth Amendment, or Amendment IX of the United States Constitution is the section of the Bill of Rights that states that there are other rights that may exist aside from the ones explicitly mentioned, and even though they are not listed, it does not mean they can be violated. The Ninth Amendment of the Bill of Rights was put into the United States Constitution on September 5, 1789 and was voted for by 9 out of 12 states on December 15, 1791.