Corn (3 min) TV-14 Play video Select your TV provider to log in to have full access to videos Select your TV provider See all providers Don't see your TV provider? Learn more You can access this video on the free HISTORY® iPad and iPhone app. Don't have the HISTORY® app? Your Parental Control settings do not allow you to view this content. Corn (3 min) TV-14 Corn became a vital crop for the survival of early civilizations in the Americas thousands of years ago.