Teaching Zepeda was a teacher at the San Cristóbal de las Casas's Preparatory School as well its law school in 1957. He taught at Universidad Veracruzana from 1958 to 1960, at
Cuba's
Universidad de Oriente in 1961 and one year later at the
Universidad de La Habana, as well as at the Escuela de Instructores de Arte de La Habana and the Instituto de Lenguas Extranjeras de Pekín. Eraclio Zepeda created the Compañía Nacional de Subsistencias Populares rural orientation group in 1967, founded the
Teatro de Orientación Campesina (Theatre of Rural Orientation), where he would produce the radio soap opera
San Martín de la Piedra; and founded the newspaper
El Correo Campesino.
Politics He participated in a series of movements against the governor of
Chiapas, Efraín Aranda Osorio, because of his actions of social dissolution. from 1958 to 1959, Zepeda was a member of the Rural Worker's Party, and then moved on to the Mexican Communist Party, the party that would be most active from 1969 to 1981. In the MCP, he was a member of the central committee and the political correspondent commission in Moscow called
"La Voz de México" ("The Voice of Mexico"). He was cofounder and a member of the central committee of the
Unified Socialist Party of Mexico and of the
Mexican Socialist Party, being a candidate for the presidency and a candidate for senator of Chiapas. He was federal deputy of the USPM in the LIII Legislature of the Congress of Mexico. In 1989, he was cofounder and a member of the warranty commission of the
Party of the Democratic Revolution. Between December 1994 and April 1997, he was secretary of government in the state of Chiapas, with governors Eduardo Robledo Rincón and Julio César Ruiz Ferro. == Awards and honors ==