Spend any time gazing at medieval European paintings, and one question tends to emerge: What is going on with those babies? Far from the sweet, chubby cherubs we might expect to see, these infants often resemble balding middle-aged men, complete with wrinkled foreheads and dour expressions. What could possibly explain this bizarre artistic choice? To understand, we have to dive into how European art — and the perception of children — evolved from the Middle Ages to the Renaissance. Religi...