The Mexican revolution, starting in Nov 20, 1910 to Feb 5, 1917, was a fierce and bloody struggle among several factions in constantly changing of shifting alliances which resulted in the end of the 30-year dictatorship in Mexico and the placement of a constitutional republican .Over one million people were killed in the revolution and several fled to the United States . All the violence and upheaval changed Mexico, but some of it remained the same. The Mexican Revolution lightened the Constitution of 1917 which provided for separation of Church and State, government ownership of the subsoil , holding of land by communal groups, the right to organize and strike and many other aspirations .