Question: Who is considered a founder of the Chicano Movement that also wrote a famous epic poem?

full_context: Document 1: Chicano art movement: The Chicano Art Movement represents attempts by Mexican-American artists to establish a unique artistic identity in the United States. Much of the art and the artists creating Chicano Art were heavily influenced by Chicano Movement (El Movimiento) which began in the 1960s. Chicano art was influenced by post-Mexican Revolution ideologies, pre-Columbian art, European painting techniques and Mexican-American social, political and cultural issues. The movement worked to resist and challenge dominant social norms and stereotypes for cultural autonomy and self-determination. Some issues the movement focused on were awareness of collective history and culture, restoration of land grants, and equal opportunity for social mobility. Throughout the movement and beyond, Chicanos have used art to express their cultural values, as protest or for aesthetic value. The art has evolved over time to not only illustrate current struggles and social issues, but also to continue to inform Chicano youth and unify around their culture and histories. Chicano art is not just Mexican-American artwork: it is a public forum that emphasizes otherwise "invisible" histories and people is a unique form of American art.
Document 2: Mexican American Youth Organization: The Mexican American Youth Organization (acronym MAYO, also described as the Mexican Youth Organization) is a civil rights organization formed in 1967 in San Antonio, Texas, USA to fight for Mexican-American rights. The creators of MAYO, Los Cinco (meaning "the five"), consisted of José Ángel Gutiérrez, Willie Velásquez, Mario Compean, Ignacio Pérez, and Juan Patlán. MAYO and its political organization, Raza Unida Party, played an important part in Texas history during the late 1960s and early 1970s. They were a part of the larger Chicano movement in the United States, and played a role in bringing about civil rights for Mexican-Americans.
Document 3: Chicanismo: Chicanismo is the ideology behind the Chicano movement. It is an ideology based on a number of important factors that helped shape a social uprising in order to fight for the liberties of Mexican-Americans. Chicanismo was shaped by a number of intellectuals and influential activists as well as by the artistic and political sphere, and the many contributors to the ideology collaborated to create a strong sense of self-identity within the Chicano community. Cultural affirmation became one of the main methods of developing Chicanismo. This cultural affirmation was achieved by bringing a new sense of nationalism for Mexican-Americans, drawing ties to the long forgotten history of Chicanos in lands that were very recently Mexican, and creating a symbolic connection to the ancestral ties of Meso-America.
Document 4: Muhammad Ali: Muhammad Ali ( ; born Cassius Marcellus Clay Jr.; January 17, 1942 – June 3, 2016) was an American professional boxer and activist. He is widely regarded as one of the most significant and celebrated sports figures of the 20th century. From early in his career, Ali was known as an inspiring, controversial, and polarizing figure both inside and outside the ring.
Document 5: Chicano Movement: The Chicano Movement of the 1960s, also called the Chicano Civil Rights Movement or El Movimiento, was a civil rights movement extending the Mexican American Civil Rights Movement of the 1960s with the stated goal of achieving Mexican American empowerment.
Document 6: I Am Joaquin: I Am Joaquin (also known as Yo soy Joaquin), by Rodolfo "Corky" Gonzales, is a famous epic poem associated with the Chicano movement of the 1960s in the United States. In "I am Joaquin", Joaquin (the narrative voice of the poem) speaks of the struggles that the Chicano people have faced in trying to achieve economic justice and equal rights in the U.S, as well as to find an identity of being part of a hybrid mestizo society. He promises that his culture will survive if all Chicano people stand proud and demand acceptance.
Document 7: La Marcha Por La Humanidad: La Marcha Por La Humanidad (also known as the Chicano Mural at UH) is a mural housed at the University Center on the campus of the University of Houston. In 1973 artists Mario Gonzales and Ruben Reyna, both Vietnam veterans, created and painted the mural on behalf of the university's chapter of the Mexican American Youth Organization. The mural depicts the political angst of the Chicano Movement, featuring Uncle Sam with a skull in place of a head, an effect popular in twentieth-century Mexican and Chicano art. It is twelve by sixty five feet.
Document 8: Julio César Chávez: Julio César Chávez González (] ; born July 12, 1962), also known as Julio César Chávez Sr., is a Mexican former professional boxer who competed from 1980 to 2005. He is considered by acclamation as the greatest Mexican boxer of all time, and one of the greatest boxers of all time.
Document 9: Gilbert Luján: Gilbert "Magú" Luján (October 16, 1940 – July 24, 2011) was a well known and influential Chicano sculptor, muralist and painter. He founded the famous Chicano collective Los Four that consisted of artists Carlos Almaraz, Beto de la Rocha (Father of former Rage Against the Machine frontman Zack de la Rocha), Frank Romero and himself. In 1974, Judithe Hernández became the "fifth" and only female member of Los Four.
Document 10: Luis Valdez: Luis Valdez (born June 26, 1940) is an American playwright, actor, writer and film director. Regarded as the father of Chicano theater in the United States, Valdez is best known for his play "Zoot Suit", his movie "La Bamba", and his creation of El Teatro Campesino. A pioneer in the Chicano Movement, Valdez broadened the scope of theatre and arts of the Chicano community.
Document 11: Rodolfo Gonzales: Rodolfo "Corky" Gonzáles (June 18, 1928 – April 12, 2005) was a Mexican American boxer, poet, and political activist. He convened the first-ever Chicano youth conference in March 1969, which was attended by many future Chicano activists and artists. The conference also promulgated the Plan Espiritual de Aztlán, a manifesto demanding self-determination for Chicanos. As an early figure of the movement for the equal rights of Mexican Americans, he is often considered one of the founders of the Chicano Movement.
Document 12: Chicano: Chicano or Chicana (also spelled Xicano or Xicana) is a chosen identity of some Mexican Americans in the United States. The term "Chicano" is sometimes used interchangeably with "Mexican-American". Both names are chosen identities within the Mexican-American community in the United States; however, these terms have a wide range of meanings in various parts of the Southwest. The term became widely used during the Chicano Movement by Mexican Americans to express pride in a shared cultural, ethnic and community identity.
Document 13: Los Vendidos: Los Vendidos (Spanish for The Sold Ones or The Sellouts) is a one-act play by Chicano playwright Luis Valdez, a founding member of El Teatro Campesino. He wrote it in 1967, and it was first performed at the Brown Beret junta in Elysian Park, East Los Angeles. The play examines stereotypes of Latinos in California and how they are treated by local, state, and federal governments.
Document 14: Colocolo (tribal chief): Colocolo (from Mapudungun "colocolo", mountain cat) was a Mapuche leader ("cacique lonco") in the early period of the Arauco War. He was a major figure in Alonso de Ercilla y Zúñiga's epic poem La Araucana, about the early Arauco War. In the poem he was the one that proposed the contest between the rival candidates for Toqui that resulted in the choice of Caupolicán. As a historical figure there are some few contemporary details about him. Stories of his life were written long after his lifetime and display many points of dubious historical accuracy.
Document 15: Che Guevara: Ernesto "Che" Guevara (] June 14, 1928 – October 9, 1967) was an Argentine Marxist revolutionary, physician, author, guerrilla leader, diplomat and military theorist. A major figure of the Cuban Revolution, his stylized visage has become a ubiquitous countercultural symbol of rebellion and global insignia in popular culture.
ground_truth: Rodolfo "Corky" Gonzales