1910    Mexican Revolution: Francisco I. Madero issues the ''Plan de San Luis Potosi'', denouncing President Porfirio Díaz, calling for a revolution to overthrow the government of Mexico, effectively starting the Mexican Revolution.

1911    Mexican President Porfirio Díaz and the revolutionary Francisco Madero sign the Treaty of Ciudad Juárez to put an end to the fighting between the forces of both men, and thus concluding the initial phase of the Mexican Revolution.

1920    Adolfo de la Huerta becomes President of Mexico.

2000    Vicente Fox Quesada is elected the first President of México from an opposition party, the Partido Acción Nacional, after more than 70 years of continuous rule by the Partido Revolucionario Institucional.