Answer:
Cesar Chavez made people aware of the struggles of farm workers for better pay and safer working conditions. He succeeded through nonviolent tactics (boycotts, pickets, and strikes). Cesar Chavez and the union sought recognition of the importance and dignity of all farm workers.
Chavez's work and that of the United Farm Workers (the union he helped found) succeeded where countless efforts in the previous century had failed: improving pay and working conditions for farm laborers in the 1960s and 1970s, and paving the way for landmark legislation in 1975 that codified and guaranteed agricultural workers' right to unionize, bargain collectively with their employers and vote in secret-ballot elections in California.