Bertrand Roussel's book provides precise corrections to several of these ideas of prehistory, accompanying each of its comments for a scientific analysis of the reasons that prompted him to refute these ideas. The book can be read on several levels: to revise already accepted ideas clearly, and a second more scientific level that will satisfy the most passionate of prehistory. this book will also appeal to lovers of prehistory to revalue their knowledge and to be able to explain to their children or grandchildren prehistory without falling into common traps peddled in various media or in fiction, among other famous cartoon " Fires stone "had many children with errors that children can not detect.