The celebrated activist that fought for the rights of farm workers is César Chávez. He co-founded the United Farm Workers (UFW) and organized numerous labor strikes and campaigns to advocate for better working conditions, wages, and labor rights for agricultural workers. Chávez's nonviolent tactics, including boycotts and marches, brought national attention to the plight of farm workers and their struggles. His dedication to social justice and civil rights has inspired generations of activists and remains a critical part of labor history in the United States.