plays were used to educate and inform not only the farm workers, but also the public. Valdez believed that humor was a major asset to his plays in El Teatro Campesino as it was a tool to lift the morale of strikers. Social and political commentary were intertwined within the humor to accomplish the goals of El Teatro Campesino. Original plays of El Teatro were based on the experiences of farm workers, but by 1967 their subject matter expanded to other aspects of Chicano culture; Los Vendidos, for example, discusses various Chicano stereotypes. Although Valdez left El Teatro in 1967, his legacy lived on. Thanks in large part to Valdez and El Teatro Campesino, the 1970s saw an explosion of Chicano theater. Theater groups sprang up with surprising speed on college campuses and in communities throughout the United States. What began as a farm workers' theater in the migrant camps of Delano flooded into a national Chicano theater movement. Later career In 1967, Valdez established a Chicano cultural center in Del Rey, California. In 1969 he moved both theater and cultural center to Fresno, where they remained for two years. During this time, he made the short film I Am Joaquin based on the legendary poem by Rodolfo "Corky" Gonzáles (it was later inducted into the National Film Registry in 2010 and preserved by the Academy Film Archive in 2017). While in Fresno, Valdez taught at Fresno State College and created TENAZ, the national Chicano theater organization, which was composed of many with theatre groups throughout the Southwest. Valdez moved the theater a final time in 1971, to San Juan Bautista, south of San Francisco. Combined now with the cultural center, it was called El Centro Campesino Cultural, and it became a fully professional production company. In 1973, he published his poem Pensamiento Serpentino, which drew on Mayan and Aztec philosophical concepts and argued that Indigenous ways of knowing were essential to the spiritual and material liberation of Chicana/os. The poem was later used in the highly successful Mexican American Studies Department Programs at Tucson Unified School District. In 1989, Valdez and officials from the Hispanic Academy of Media Arts and Sciences and Nosotros formed the Latino Writers Group to improve opportunities and pay for Latino writers in Hollywood. Luis Valdez is a founding faculty member and director (c. 1994) of the California State University, Monterey Bay Teledramatic Arts and