Oracle bones were first fully excavated from the Anyang site in Henan Province China in 1899.
They are mostly ox scapula and turtle shells or plastrons which when heated would crack. Their use as a method of divination in China seems to date back to the middle of the Shang Dynasty, probably in the reign of Pangeng, around 1350 BC when the Shang capital was moved to Yin. The site at Anyang is believed to be the site of this ancient capital.
Oracle bones found in the 1970's have been dated to the Zhou period, with some dating to the Spring and Autumn period of the later Zhou Dynasty.
They were also called dragon bones on account of their discovered use when they were found sold in Chinese medicinal centres either whole or crushed for the healing of various ailments.
