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.
1837: Abolitionist Elijah Lovejoy is murdered. 1838: Frederick Douglass escapes slavery and becomes active in the abolitionist cause. 1840: Formation of the Liberty Party which ran presidential candidates in 1840 and 1844. 1844: John Quincy Adams finally wins repeal of the Gag Rule in Congress. 1846: Wilmot Proviso, prohibiting slavery in any territory taken from Mexico, is passed in the House, but defeated in the Senate.