The first half of the 20th century saw two significant civil conflicts in Mexico. The Mexican Revolution, from 1910 to 1919, saw a series of successive political rebellions against the government of Mexico. The conflict resulted in the creation of the 1917 Constitution of Mexico. The Cristero War, from 1926 to 1929, was a widespread rebellion against the secularist, anti-Catholic and anti-clerical policies of the incumbent Mexican government. The conflict came to an end following an American-brokered ceasefire in 1929.