Ippolito (1959) presented a complete bibliography of the literature on the Calabrian geology as published up until that moment. Books, reviews and important "mile¬stones" concerning the geology of the Calabrian Arc are the following: Cortese (1895), Limanowski (1913), Quitzow (1935), Caire et al. (1960), Caire (1961), Grandjacquet et al. (1961), Ogniben (1969, 1973 ), Caire (1970, 1975, 1978 ), Burton (1971), Amodio-Morelli et al. (1976), Dubois (1976), Grandjacquet and Mascle (1978), Moussat (1983), van Dijk (1992), and van Dijk et al. (2000). The earlier works were mainly dedicated to the evolution of the basement rocks of the area. The Neogene sedimentary successions were merely regarded as "post-orogenic" infill of "neo-tectonic" tensional features. In the course of time, however, a shift can be observed in the temporal significance of these terms, from post-Eocene to post-Early Miocene to post-middle Pleistocene. The region is seismically active and is generally ascribed to the re-establishment of an equilibrium after the latest (mid-Pleistocene) deformation phase. Some authors believe that the subduction process is still ongoing, which is a matter of debate (van Dijk & Scheepers, 1995). Calabria has one of the oldest records of human presence in Italy, which date back to around 700,000 BC when a type of "Homo erectus" evolved leaving traces around coastal areas. During the Paleolithic period Stone Age humans created the "Bos Primigenius", a figure of a bull on a cliff which dates back around 12,000 years in the Romito Cave in the town of Papasidero. When the Neolithic period came the first villages were founded around 3,500 BC. Around 1500 BC a tribe called the Oenotri ("vine-cultivators"), settled in the region. According to Greek mythology they were Greeks who were led to the region by their king, Oenotrus. The Greeks used the term 'italoi', which according to some ancient Greek writers was derived from a legendary king of the Oenotri, Italus and according to others from the bull. Originally the Greeks used 'italoi' to indicate Calabrians and later it became synonymous with the rest of the peninsula.