The document discusses the "Curse of Tippecanoe", which is the belief that US Presidents elected in years divisible by 20 died in office. It began with William Henry Harrison in 1840, who died in 1841 after defeating Tecumseh's brother at the Battle of Tippecanoe in 1811. According to legend, Tecumseh's brother placed a curse on Harrison and future Presidents elected in those years. This curse was thought to affect subsequent Presidents like Abraham Lincoln, James Garfield, William McKinley, Warren Harding, Franklin Roosevelt, and John F. Kennedy.