When did printing first appear? How is it mainly developed step by step?

Printing first appeared in the Tang Dynasty. Let's look at how ancient printing developed into modern printing technology step by step.

At first, printing was gradually developed through rubbing and stamping. After a long time, these two ways gradually merged into one way, and after accumulating the experience of many people, block printing appeared. Block printing first appeared in 600 AD, that is, in the early Tang Dynasty. This is the earliest recorded engraving printing technology in China in human history. At that time, block printing appeared in the Tang Dynasty. According to people at that time, it was mainly invented by a Song Renzong person in the Qing Dynasty. The citizen's name is Bi Sheng, and he invented movable type printing. During that time, movable type printing was regarded as a sacred object, because it was the first printing method invented by people, which enabled some books to be printed at that time.

Later, after a long period of improvement, in the Yuan Dynasty, someone invented wood movable type printing, that is, lettering printing with wood. Now it is mentioned that the earliest inventor of movable type printing is Bi Sheng. Admittedly, Bi Sheng really pioneered the invention of printing, but the materials he used at that time had some disadvantages. Cement will break after being baked many times, so it will not exist for a long time and then be further improved.

Later, in 1397, people gradually invented the lead movable type version, which can have higher utilization rate and lower material loss rate. Since the beginning of19th century, this production technology has spread all over the world. People in Britain and France need to learn the whole printing technology and further develop it. China's printing technology has always been in a leading position, so China has made great contributions to world printing.

The above story only represents my personal opinion. Please forgive me if there is any mistake.