Happy Cinco de Mayo

Today is the 5th of May and also a holiday here (although not because of Mexico). I get in an argument with a teacher every year whether or not Cinco de Mayo is Mexican Independance day or not. According to all the resources I can find, it is the celebration of the battle of Puebla where Mexico defeated the troops of Napoleon III. Mexico was already a country before that. She still insists she is right because she is from Seattle and she knows. Never mind that I lived in Texas for 10 years. Which one is closer to Mexico again?

Anyways, this is a special 5th of May because it is 5/5/05. Only 397 days until the end of the world.