What does Oracle mean?

Oracle bones refer to the tortoise's abdominal shell, carapace and shoulder blades of cattle, and sometimes the shoulder blades of sheep, pigs or deer are used. Most of these Oracle Bone Inscriptions are relics of divination of the Yin people. In the Yin and Shang Dynasties, primitive religions that worshipped ancestors and natural gods occupied a dominant position in ideology. Therefore, when the Yin people have difficulties or carry out major activities, they should ask people to divine and burn tortoise shells and animal bones to predict the good or bad events.