Cesar Chavez Day is a U.S. federal commemorative holiday, proclaimed by President Barack Obama in 2014. The holiday celebrates the birth and legacy of the civil rights and labor movement activist Cesar Chavez on March 31 every year. From Wikipedia
Over 5,000 gathered on César Chávez Day to oppose immigration policies, advocate for labor protections, and highlight the challenges facing undocumented workers in California’s Central Valley.