For Stone Age people, reaching North and South America seems impossible - on each side vast oceans, and to the north an impenetrable ice sheet that covered the whole of Canada. So how did the first Americans get there?
Dr Alice Roberts discovers evidence for an ancient corridor through the Canadian ice sheet that may have allowed those first people through. But there are problems - in particular some very ancient finds in southern Chile seem to suggest a very different way in to the Americas. Amazingly, an ancient human skull discovered in Brazil even points to an Australasian origin of the Americans. Could a route from Australia across the Pacific have been possible? A surprising answer to the problem eventually comes from a Canadian forensic scientist more used to solving murder cases.
A religion is a belief system with rituals. The missionary kopimistsamfundet is a religious group centered in Sweden who believe that copying and the sharing of information is the best and most beautiful that is. To have your information copied is a token of appreciation, that someone think you have done something good.