Action and Reaction

Historical marker location:

Saint Louis, Missouri

( Marker is on Gateway Arch Trail, on the right when traveling south.)

Jefferson National Expansion Memorial. National Park Service, U.S. Department of the Interior

Mark Twain, one of America's most beloved authors, was born in Florida, Missouri, in 1835. He later moved to Hannibal, Missouri, where he set many of his famous stories, including "The Adventures of Tom Sawyer" and "The Adventures of Huckleberry Finn".