2. Oracle Bone Inscriptions has three basic elements of China's calligraphy: writing with a pen, writing with Chinese characters and composition. However, not all previous picture symbols have these three elements. The picture shows the work "Zhu Niu Bone Sacrifice and Hunting Inscription" in Wuding period of Shang Dynasty, with bold style, scattered font size, vivid, diverse and natural. It is worthy of being a masterpiece in oracle calligraphy.
3. Archaeologists in China have published a series of unearthed materials about the origin of Chinese characters earlier than Oracle Bone Inscriptions in Yin Ruins. These materials mainly refer to the carved or painted symbols that appeared on pottery in the late primitive society and early historical society, and also include a few symbols engraved on Oracle Bone Inscriptions, jade and stone tools.
4. As a professional worker, I tried to comprehensively sort out these original materials by comprehensively using scientific methods such as archaeology, ancient Chinese character configuration, comparative philology, scientific archaeology and high-tech means, and find out some clues about the occurrence and development of Chinese characters before Shang Dynasty.
5. There are various opinions about the origin of Chinese characters in China ancient literature, such as "knot rope theory", "gossip theory", "picture theory" and "calligraphy contract theory". In ancient books, there is a legend that Cang Xie, the historian of the Yellow Emperor, created Chinese characters. Modern scholars believe that systematic writing tools cannot be completely created by one person. If Cang Xie really exists, he should be a text organizer or publisher.