> The main reason that the United States became the dominant superpower of the early-mid 20th century and eclipsed its European peers was that many more kids in

> The main reason that the United States became the dominant superpower of the early-mid 20th century and eclipsed its European peers was that many more kids in the United States had been going to high school for a long time. Citation definitely needed on that one, as I think most casual observers would assume that being destroyed by the most catastrophic war the world ever saw ... twice ... would have more to do with it than some long forgotten fashion amongst British intellectuals.