The Origin of the Lock
When primitive people lived in a cave, they sometimes pushed boulders to block the entrance of the cave to be safe. They were not guarded against thieves but beasts. After the emergence of private ownership, the thief appeared, and the lock also occurred. As far back as 3,000 years ago, locks existed in China. However, the earliest locks had no mechanism, but were only made in the shape of ferocious animals such as tigers. They wanted to scare away thieves. The locks were only symbolic locks. It...












