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Events on Tuesday 6 April 1915 1
1915Battle of CelayaÁlvaro Obregón defeats Pancho Villa in the Mexican RevolutionBetween 6 and 15 April 1915, forces under Álvaro Obregón defeated Pancho Villa's Division of the North at Celaya, using barbed wire and machine guns to break Villa's cavalry charges. The defeat crippled Villa's army and shifted momentum in the Mexican Revolution toward the Constitutionalists.