Excerpts from Books and Wikipedia
"By 1910, Porfirio Díaz had dominated Mexico for thirty-four years, and he was getting old. . . .Zapata’s image—broad sombrero and black mustache, cartridge belts across his chest, riding a white stallion—became an icon of the Mexican Revolution. But Emiliano Zapata represents only one of many local leaders of rebellions that broke out all over Mexico. Unable or unwilling to fight them, Díaz left for Parisian exile in 1911. Suddenly, Mexico was full of “revolutionaries” with vastly differing backgrounds and goals. They had agreed only on the need to oust Díaz. Who would rule now? . . . Years of upheaval followed in 1914–20, as various forces fought it out . . . Pancho Villa built an army of former cowboys, miners, railroad workers, and oil field roustabouts very different from the peasant guerrillas of southern movements like Zapata’s. A third movement, better-connected, more urban and middle-class, finally gained the upper hand and drafted a new, revolutionary constitution in 1917. These so-called Constitutionalists . . . May be called the winners of the Mexican Revolution. Their political heirs controlled the destiny of Mexico for the rest of the 1900s."