MEXICO CITY.- Prehispanic ceramics, human skeletons and vestiges of dwelling and ceremonial areas are part of findings registered by archaeologists throughout a decade of explorations at Tepoztlan, Morelos; this discovering reveals that the site had an earlier occupation than the one registered until now, which goes back to 1,500 BC. This date surpasses the chronologies known until now which record vestiges of a settlement of Xochimilca affiliation dated between 1200 and 1500 of the Common Era. This was announced by archaeologist Giselle Canto from the National Institute of Anthropology and History (INAH), who has conducted several excavations in 20 plots of the locality, of extensions that go from of 800 to 70,000 square meters. At those