To walk to the past, it is a solitary activity. Contemporary society, just takes a few steps and returns to its everyday life. The historian takes some provisions and embarks on an adventure. He does it alone, because when he looks for shelters, that is, academies on the road; he notes that they are just a few tens of yards away from the rest of society. At some point, we meet another traveler. However, he usually speaks another language and we can only walk together a few inches; in this impenetrable night.