To explore the historical significance of Cinco De Mayo, we step back to the origins of the commemoration, share how some Mexican American Californians regard it and trace how it has morphed into the celebrations we see today. | By Edward Henderson, California Black Media To explore the historical significance of Cinco De Mayo, we step back to the origins of the commemoration, share how some Mexican American Californians regard it and trace how it has morphed into the celebrations we see today. Celebrations in the United States began in 1862 in Columbia, California,