Holidays November 20th

People really know why this Monday is an off day? What happened November 20, 1910 in Mexico?
November 20 is very important day, it is remembered because in this date was the Mexican revolution on twentieth century; The Mexican revolution was a conflicted social and political. Porfirio Diaz was president of Mexico for thirty four years his government was dictorial and Mexico had great economic growth and political stability, but during the twenty-first century social crisis erupted several and Porfirio Diaz had decided to retire at the end of his term without seeking reelection, but then Madero began to make a political movement and decided Porfirio reelected and Madero was imprisoned. Madero escaped after the state prison and fled to the United States. From San Antonio proclaimed the Plan de San Luis, who called to take up arms against the government of Diaz on November 20, 1910. The armed conflict took place in the first instance to the north of the country and later spread to other parts of the country. Once the rebellion occupied Ciudad Juárez, Chihuahua, Porfirio Díaz resigned and went into exile in France.