The best, most off-the wall, Childrens' History book in the History of Childrens books on History.

My dad has a copy of "A Child's History Of The World" by VM Hillyer (Virgil no less) which I read many times over when I was younger. It doesn't start like other books of Complete History for Children. They usually begin with the Roman Invasions of Britain. This is an American book from the 1920s I think and it is still used in many US elementary schools today. It has been revised.