Don’t underestimate the wisdom of the ancients. The uniqueness of fingerprints should have been discovered very early, because the recognizability of fingerprints is still very high.

Fingerprints can be used instead of signatures, which is very convenient for those who are illiterate.

In ancient times, due to limitations in education levels and the number of teachers, many people could not read, let alone write. There was even a period when the signature and signature were just circles, something that had no legal effect at all and was of no use. But the government regulations are there, so people still have a lot of psychological pressure on signing and depositing. After the fingerprint system was introduced, the steps of signing and stamping were simplified.

Especially in criminal interrogations, there are not a few cases where people surrender to beatings. Some prisoners were forcefully held and pressed with fingerprints when they were beaten until they were confused. Once the fingerprint is pressed, the possibility of going back on it becomes very slim.

Fingerprints are also unique, there is no possibility of duplication, and they are even more convincing than a signature.

The uniqueness of fingerprints should have been discovered by ancient people, and they would apply it to such important things as signatures and stamps. Generally speaking, the fingerprints of our fingers can be observed with the naked eye. Through careful comparison, this phenomenon can be discovered. It can be said that using this important discovery in the trial of the case is a particularly correct choice. Its authenticity is more convincing than a signature and a circle. After all, those can be denied, but fingerprints are unique.

Since people learned about the special function of pressing fingerprints, many aspects of life can be solved peacefully by pressing fingerprints. For example, in the transaction contracts between buyers and sellers, in ancient times, apart from seals, the most convincing thing was probably the pressing of fingerprints.