Six Flags Entertainment Corporation, or simply Six Flags, is an amusement park corporation based in the United States, with properties in the US, Canada, and Mexico.
There were 9 US presidents that had slaves at some time. These were George Washington, Thomas Jefferson, James Madison, Andrew Jackson, John Tyler, James K. Polk, Zachary Tayl â¦ or, Andrew Johnson, and Ulysses S. Grant.
Video: President Ulysses S. Grant: Election, Successes and Corruption. Ulysses S. Grant, the Union hero of the Civil War, was elected in 1868, the last U.S. president to have been a slave owner. Despite his popularity, the nation faced social, economic and political difficulties, and his administration was shrouded in corruption. History 103: US History I / History Courses.