Was the ancient Oracle Bone Inscriptions carved or sewn?

Oracle Bone Inscriptions is carved on tortoise shells and animal bones, collectively known as Oracle Bone Inscriptions. Animal bones are mostly shoulder swelling bones of cattle and sheep. Oracle Bone Inscriptions should be treated before it is used. First, remove the flesh and blood from the Oracle bones, and then saw them flat. Then, on the inside of the tortoise shell or the reverse side of the animal skeleton, a concave gap is drilled with a cutting tool, which is called a "chisel". There is also a "chisel" on the front of the wide and thin part of the lower end of the Oracle bone. "Chisel. Arrange neatly and orderly.

Oracle Bone Inscriptions is related to Right Bu. In divination, the occupier first cauterizes the hole in the Oracle bone with fire, and the front end of the cauterized chisel presents a "Bu"-shaped crack, which is called "omen". When you ask a question, you should ask both sides of the question. If you ask about rain, ask about rain first, and then ask if it will rain. Every question will burn several omens. The diviner should engrave his name, the date of divination and the questions to be asked on the Oracle bones, and also engrave the order and nature of the miracles beside him. Finally, the result of divination, that is, whether divination is effective or not, is engraved on the Oracle bone. Verified by divination, this Oracle Bone Inscriptions became a kind of file and was preserved.

Experts not only discovered how the ancients carved Oracle Bone Inscriptions, but also discovered from Oracle Bone Inscriptions how the master taught his disciples to carve, how the master demonstrated and how the disciples learned to carve. When Jiazi arrived in Gui You, there was an Oracle bone engraved with ten branches, and several lines were repeatedly engraved, which were engraved on the front and back of the Oracle bone. One line is particularly neat and beautiful, and the other line is crooked. It is clear that this neat and beautiful line was carved by the teacher, and those crooked lines were carved by the disciples. But in the skewed lines, occasionally a few words are neatly carved, which is obviously a demonstration made by the teacher when teaching his disciples.

Experts not only found the fragments of Oracle Bone Inscriptions that the teacher taught his disciples to carve, but also found the copper chisel for carving.