sentences:  Recent archaeological discoveries in 2011 demonstrate that Fujian had entered the Neolithic Age by the middle of the 6th millennium BC.From the Keqiutou site (7450–5590 BP), an early Neolithic site in Pingtan Island located about southeast of Fuzhou, numerous tools made of stones, shells, bones, jades, and ceramics (including wheel-made ceramics) have been unearthed, together with spinning wheels, which is definitive evidence of weaving.The Tanshishan () site (5500–4000 BP) in suburban Fuzhou spans the Neolithic and Chalcolithic Age where semi-underground circular buildings were found in the lower level.