GRAPHIC: Celebrating National Peanut Day
September 13, 2011 | 8:26 p.m. CDT
From cattle feed to peanut butter, peanuts have been part of U.S. history since the 19th century.
From Peru in South America, peanuts gradually spread around the globe.
Peanuts have come a long way since coming to the U.S. In celebration of National Peanut Day, here's some of the highlights.
Peanuts are legumes, or beans, encapsulated in hard pods that grow underground.