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.
A senator from Vermont first introduced a bill to ban the importation of slaves in late 1805, and President Thomas Jefferson recommended the same course of action in his annual address to Congress a year later, in December 1806. The law was finally passed by both houses of Congress on March 2, 1807, and Jefferson signed it into law on March 3, 1807.