It's close to being the perfect food, containing pretty much all you need to survive. How the Potato Changed the World - Brought to Europe from the New World by Spanish explorers, the lowly potato gave rise to modern industrial agriculture.
What is "lowly" about the sacred Mashed Potato? asks I. We only grow the pre-mashed varieties at my house, genetically-modified to contain the butter, salt, and cream genes.
The premium varieties of potato, of course, come with a thick rare rib-eye on the side.
(It's remarkable to consider all of the things from the New World which changed the Old World: corn - maize, potato, tomato, syphilis, squash, etc.)