Today in History: September 14, Roosevelt becomes youngest US president
Today is Monday, Sept. 14, the 257th day of 2026. There are 108 days left in the year. 14, 1901, President William McKinley died in Buffalo, New York, of gunshot wounds inflicted by an assassin eight days earlier; Vice President Theodore Roosevelt succeeded him, becoming the youngest-ever U.S. president at age 42. In 1847, during the Mexican-American War, U.S. forces under Gen.