The U.S. Supreme Court, 70 years after rejecting Roscoe Filburn's bid to limit the federal government's power to regulate commerce. Chip Somodevilla/Getty Images hide caption

itoggle caption Chip Somodevilla/Getty Images

Notice how some of these tomatoes have unripe-looking tops? Those "green shoulders" are actually the keys to flavor. pocius/Flickr.com hide caption

itoggle caption pocius/Flickr.com

The barons wanted King John to stop seizing their grain. The fish weirs had to go, too. Wikimedia Commons hide caption

itoggle caption Wikimedia Commons