The discovery of Palaeolithic sequences of evolution in Laconian-Messenian Mani and in the Cyclades contributed to the organization of a project of preliminary research over a broad expanse round the Aegean. This research aimed at detection of the early stages of Palaeolithic evolution. Within this context, research was also carried out in East Attica. In August 1979 the first finds came to light in the riparian system of Megalo Rema and especially on the sites of Kato Harvati, Draphi and Panorama. New open-air sites were then located in the area extending from Palaia Penteli, Yeraka, Pallini, Paiania, Pikermi, Raphina, and along the east coast, to Legrena. During this preliminary research an especially rich as well as original material was revealed, which is assesed as representative of the major stages of evolution from the Upper Miocene to the end of the Palaeolithic era. One of the most important lithotechnies is that from Draphi (Pallini region), which dates from the middle of the Lower Pleistocene era. Part of the results of the forementioned research was reported on in the 1st International Symposium for the Aegean (Ikaria island, 1980) and in the 1st Panhellenic Congress of Anthropology (Halkidiki, 1982).