ABSTRACT
During the Díaz regime in Mexico several groups of radicals conducted an ardent, though furtive propaganda campaign against the Díaz dictatorship. The socialistic groups centered around the newspaper, El Obrero Socialista, with headquarters in Guadalajara and in Yucatan. With the overthrow in 1910 of Porfirio Díaz, trade-union organizations and progressive political parties could, for the first time in years, work in the open.
