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.
At the time of his death in 1799, George Washington owned some 300 slaves. However, before his passing, he had become opposed to slavery, and in his will he ordered that his slaves to be freed after his wife's death.