[1] During the early 1900s he was associated with Ricardo Flores Magón's anarchist Mexican Liberal Party, which was involved in strikes and uprisings in Mexico from 1906 to 1911.
[2] He was also the secretary and vice president of the Liberal Club "Ponciano Arriaga" (named after the 19th century lawyer) and was imprisoned by the regime of Porfirio Díaz for his activities, and later forced into exile in United States.
[1] During the presidency of Francisco I. Madero, Díaz Soto y Gama helped found the Casa del Obrero Mundial (House of the World Worker) in Mexico City.
During the convention Soto y Gama's speech and disrespect for the Mexican flag, which he said symbolized the "triumph of clerical reaction", caused a protest from some of the participants, many of whom threatened him by pointing their guns at him.
Since Zapata's backing came mostly from rural campesinos, Soto y Gama also served as his representative to urban workers,[7] including the anarcho-syndicalist union Casa del Obrero Mundial.