Oracle Bone Inscriptions is an ancient script in China, which mainly refers to the script carved on tortoise shells or animal bones by the royal family in the late Shang Dynasty in China. It is the earliest mature Chinese character we can see, and it is also the earliest known carrier of systematic characters in Shang Dynasty in China and East Asia.
As early as thousands of years ago, our ancestors created words. But at that time, there was no paper. In order to record one thing, we use a knife to carve words on tortoise shells and animal bones, or cast words on bronzes. Later, people wrote on bamboo and wood chips. These bamboo and wood chips are tied up with ropes to make a book. But this kind of book is bulky and inconvenient to read, carry and keep. In ancient times, it was said that a person with a high degree of education needed a cart when there were many books. Later, with silk woven from silk, you can write on it. Silk is lighter than bamboo chips and sawdust, but it is too expensive for only a few people to use and cannot be popularized.