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.
When George Washington took over Mount Vernon at age 22 there were 18 slaves. When he married he gained control of 200 more which technically belonged to the estate of his wifeâs first husband. By 1786 he owned 216 slaves. (Flexner, P.114) While George Washington was serving as President in Philadelphia a Pennsylvania law was passed freeing slaves whose owners had been citizens of the state for six months.