The 19th of April Movement, or M-19, was a Colombian urban guerrilla movement active in the late 1970s and 1980s. After its demobilization it became a political party, the M-19 Democratic Alliance, or AD/M-19. Wikipedia
Founders: Carlos Pizarro Leongómez, Jaime Bateman Cayón, Antonio Navarro Wolff, and more
Founded: 1974, Colombia