The Mexican Revolution (Spanish: Revolución mexicana) was a major armed struggle ca. 1910–20 that radically transformed Mexican culture and government. Although recent research has focused on local and regional aspects of the Revolution, it was a "genuinely national revolution." Its outbreak in 1910 resulted from the failure of the 35-year long regime of Porfirio Díaz to find a managed solution to the presidential succession. This meant there was a political crisis among competing elites and the opportunity for agrarian insurrection. Wealthy landowner Francisco I. Madero challenged Díaz in 1910 presidential election, and following the rigged results revolted under the Plan of San Luis Potosí. Armed conflict ousted Díaz from power and a new election was held in 1911, bringing Madero to the