David R. Contosta is professor of history at Chestnut Hill College in Philadelphia, PA, and the author of twenty-three previous books, including Rebel Giants: The Revolutionary Lives of Abraham Lincoln and Charles Darwin. Contosta has been a Fulbright Scholar to France, a visiting scholar at Cambridge University in England, and most recently a visiting professor at Pyeongtaek University in South Korea. In addition, he has written, coproduced, and appeared in several historical documentaries for public television, as well as for local cable television.