This is the Cinco de Mayo edition of "You Oughta Know!", so grab a cerveza as I drop some knowledge on you. From Wikipedia : Cinco de Mayo (Spanish for "fifth of May") is a regional holiday in Mexico, primarily celebrated in the state of Puebla, with some limited recognition in other parts of Mexico. The holiday commemorates the Mexican army's unlikely victory over French forces at the Battle of Puebla on May 5, 1862, under the leadership of Mexican General Ignacio Zaragoza SeguÃn. Cinco de Mayo is not "an obligatory federal holiday" in Mexico, but rather a holiday that can be observed voluntarily. While Cinco de Mayo has limited significance nationwide in Mexico, the date is observed in the United States (also voluntarily) and other locations around the world as a celebration of Mexican heritage and pride... In 1861, Benito Juarez stopped making interest payments to countries that Mexico owed money to. In response, France attacked Mexico to forc...