David Christian, a James March professor-at-large, sits down with Stephen Colbert to talk about his “big history” project. Beginning with a book, Maps of Time: an Introduction to Big History in 2004, Christian is now hosting a TV series on The History Channel. Christian parries comedic jabs from Colbert as he explains how his show attempts to portray the “history of the universe, from the big bang to now… in ten hours.” Watch the story…