David von Drehle is the author of three previous books, including the award-winning Triangle, a history of the Triangle shirtwaist factory fire that The New York Times called "social history at its best." An editor-at-large at Time magazine, he and his family live in Kansas City, Missouri.
http://us.macmillan.com/author/davidv...
“Exploration and invention were the two faces on the coin of progress, and progress was the spirit of the age”