In which dynasty did Oracle Bone Inscriptions appear?

Oracle Bone Inscriptions was founded in Shang Dynasty, when it was used for divination. People first carved words on bones and used them in situations such as war, flood and childbirth. It is equivalent to fortune telling now. There are some cracks in the Oracle Bone Inscriptions, and ancient wizards look at the direction of the cracks to tell their fortune. Oracle Bone Inscriptions has long been discovered. At that time, people used it as a keel, thinking it could cure all diseases. When people are sick, they use Oracle Bone Inscriptions as medicine. Due to the low level of education, people at that time did not know that Oracle Bone Inscriptions was engraved on it. Later, it was discovered by a professor as an ancient writing. To save it. Oracle Bone Inscriptions is very difficult to identify, even Guo Moruo knows more than 1000 characters. Many writing historians fail to realize this.