The earliest confirmed evidence of the Chinese script yet discovered is the body of inscriptions on oracle bones from the late Shang dynasty (c. 1200–1050 BC). These symbols, carved on pieces of bone and turtle shell being sold as "dragon bones" for medicinal purposes, were identified as Chinese writing by scholars in 1899. By 1928, the source of the oracle bones had been traced to a village near Anyang in Henan Province, which was excavated by the Academia Sinica between 1928 and 1937. Over 150,000 fragments have been found.