'Mural: Cesar Chavez' photo (c) 2014, Franco Folini - license: http://creativecommons.org/licenses/by-sa/2.0/

Cesar Chavez Day is recognized as a holiday by eight states in the U.S., and falls on March 31st — his birthday (or a Monday/Friday that is closest to a weekend).

You might be interested in The Best Sites For Learning About Cesar Chavez.