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.
Slave owning was common among early presidents; of the first twelve, only John Adams (2) and John Quincy Adams (6) never owned slaves, although two of the others (Martin Van Buren and William Henry Harrison) did not own slaves while serving as president.