his findings in 1836.Subsequently, Louis Laurent Gabriel de Mortillet (1821-1898), professor of prehistoric anthropology at the School of Anthropology in Paris, published (1882) "Le Prehistorique, antiquité de l'homme", in which he was the first to characterize periods by the name of a site.

Chellean included artifacts discovered at the town of Chelles, a suburb of Paris. They are similar to those