This is a book giving an unprecedented perspective on human history ... who is receptive to the systematic search for rationalization. This is my case. Why the "progress of civilization" they appeared here (Eurasia) than there (America), what are the necessary factors (domestication of plants and animals) etc ..? One (of) response (s) is in the book, which can lead each reader to derive his own conviction. The demonstration is brilliant, compelling, but the subject is so ambitious that there are certainly other ... One of the books that everyone should have had in hand, no doubt.