Though we don't acknowledge it daily (and not that we shouldn't) humankind owes a lot to the beasts of burden that help us. Columbia, Tennessee celebrates the tradition of the humble yet strong mule in it's Mule Day Celebration. This year marks the Centennial of Mule Day. We find out more about Mule Day, its country roots, its future and its growing fan club in this CyberCountry Minute.