Original: César Estrada Chávez (March 31, 1927 - April 23, 1993) was a Mexican American farm worker, labor leader, and civil rights activist who, with Dolores Huerta, co-founded the National Farm Workers Association, which later became the United Farm Workers (UFW).
Simplified: César Estrada Chávez (March 31, 1927 - April 23, 1993) was the leader of a labor union. Chávez started the National Farm Workers Association (NFWA).