Madero's Plan de San Luis Potosí — Revolution Begins

Francisco I. Madero, imprisoned by Díaz before the 1910 elections, escaped to Texas and issued his Plan de San Luis Potosí on October 5, 1910, calling for a national uprising on November 20. The plan declared the election null, promised agrarian reform (in vague terms), and launched the revolution under the slogan 'Sufragio Efectivo, No Reelección.' November 20 is Mexico's Revolution Day national holiday.