It's Cinco de Mayo and many people are celebrating it, but do we know exactly what we're celebrating?
A lot of people don't know. It is not Mexican Independence Day. It's a holiday that is celebrated more in the U.S. especially in California. It began 160 years ago, that much we can tell you.
LISTEN BELOW to KOGO's Marty Golingan on what a member of the House of Mexico in Balboa Park told us about Cinco de Mayo.
WATCH BELOW - History Channel on Cinco de Mayo.
(Photo Getty Images)