“R aise your hand if you’ve heard of Thomas Jefferson,” I said to a group of about 70 middle schoolers in Memphis. Hands shot up across the auditorium. “What do we know about him?” I asked. “He was the president!” one said. “He had funny hair!” said another. “He wrote the Constitution?” one remarked, half-asking, half-asserting. I responded to each of their comments: “Yes, he was our country’s third president.” “That’s actually how many men wore their hair back then. Many men even wore wigs.” “