The rights of diverse groups expanded in the 1960s and 1970s. Latinos and Native Americans organized for civil rights. Cesar Chavez formed the United Farm Workers union to advocate for migrant farmworkers who faced poor conditions. The Chicano movement promoted Latino culture and political representation. The American Indian Movement occupied Wounded Knee to protest treaty violations, gaining legal victories. Consumer advocates and laws improved workplace safety. People with disabilities gained equal access to education through new laws.