The Mexican Revolution of 1910 begins in Puebla and Chihuahua. In Puebla, Aquiles Serdán fights from his house and is killed in action.

Ricardo Flores Magón leads an uprising in Baja California and occupies Mexicali temporarily.

President Taft mobilizes 20,000 soldiers to the U.S.-Mexican border and mobilizes the navy in the Gulf of Mexico and the Pacific.

Porfirio Díaz’s cabinet resigns en masse. On 28 March Díaz names another.

Porfirio Díaz sends Congress a decree of “no reelection” of the president and the vice president. The Cámara de Diputados approves it on 25 April and the Senate approves it on 8 May 1911.

Madero’s revolutionary forces take over Ciudad Juárez, Chihuahua, where Madero establishes his headquarters.

Revolutionary forces capture and occupy the cities of Pachuca, Colima, Cuernavaca, Acapulco, and Chilpancingo.