Neither slavery nor involuntary servitude, except as a punishment for crime whereof the party shall have been duly convicted, shall exist within the United States, or any place subject to their jurisdiction.
So basically there shall be no slavery within the US, and if there is it will be prosecuted.
Lee Harvey Oswald
According to Wikipedia and History.com
Five government investigations concluded that Oswald shot and killed Kennedy from the sixth floor of the Texas School Book Depository
Depending on the location, you would most likely belong to the Anasazi people. These were Native Americans that were the pueblo people and lived in the North American continent before the Native American tribes that are famous nowadays existed. They left pueblos as evidence of their lives.