Maize was cultivated from an annual grass native to Mexico around 10,000 years ago. Since then, it has become one of the most diverse and important crops the world over. Unfortunately, in recent years, much of that amazing history, culture, and biodiversity has been lost to a few GMO monocultures. But there's a remedy: sow your own heirloom kernels! Then, take your activist stance to the kitchen and make the most-ethically sound (and best tasting) popcorn, grilled cobs, polenta, and cornbread.