Signature and imprinting has been a method in our country since ancient times. Now we know fingerprint technology very well and have a good grasp of it. In fact, fingerprint technology is a modern high-tech technology because fingerprints do not change. , so fingerprints represent a certain person, which is of great help to the security system or the tracing of criminals. So in ancient times hundreds of years ago, people had the theory of signatures. Can fingerprints be distinguished at that time?

In ancient times, some major events required signatures. However, not everyone in ancient times was educated, so some people could not write. At this time, signing and pressing fingerprints came in handy, because in ancient times At that time, people realized that everyone's fingerprints were different. Its origin was actually palm reading. Palm reading had become popular as early as the Zhou Dynasty. Later dynasties continued to improve it, and people found that everyone's fingerprints were different. Different palmistries also lead to different fortunes, so we came up with the practice of pressing fingerprints.

In ancient times, because the technology was not so advanced, you could not just rely on your words to do anything. You had to sign and stamp it, and press a fingerprint. So could the ancients really tell the fingerprints? In fact, it is possible. First of all, ancient people were very superstitious. They would not deny the fingerprints they pressed. They were afraid of the gods punishing them, so they would not deny it after making the fingerprints.

Second point, as early as the Song Dynasty, there were forensic doctors and criminal investigators. They observed fingerprints very carefully. They could roughly identify people with the naked eye, and they could identify people based on their fingerprints, so there were fingerprints. To resolve the case, people's fingerprints would also be collected on a large scale at that time. Therefore, fingerprint technology is not a technology of Western countries, but a technology that our country had in ancient times, but it is not as accurate as it is now.