Locks and keys have been around for centuries and play a crucial role in keeping our belongings safe. But did you know that there are some interesting facts about locks and keys that you may not be aware of? Let’s explore these fascinating facts together!

Ancient Egyptian Origins:

Locks and keys were first used in ancient Egypt around 4,000 years ago. The Egyptians used wooden pin locks, which consisted of a wooden bolt that slid into a slot in the door frame. The key, typically made of wood or metal, had pegs or teeth that matched the pins inside the lock.

The Oldest Lock:

The oldest known lock was found in the ruins of the Palace of Khorsabad in ancient Assyria, dating back to around 704 BC. This lock used a large wooden bolt and had a key that was shaped like a toothbrush.

Master Key Systems:

Master key systems are designed to allow different keys to open multiple locks. This is often used in apartment buildings or offices where one key can open all the doors, while individual keys can only open specific doors. It’s a convenient way to manage access to different areas.

Combination Locks:

Instead of using keys, combination locks rely on a series of numbers or symbols to open. You have probably seen combination locks on school lockers or gym lockers. To open the lock, you need to turn the dial to specific numbers in the correct sequence.

Modern High-Security Locks:

Today, high-security locks use advanced technology to prevent unauthorized access. Some locks have electronic components, such as key cards or biometric scanners that require fingerprints or retina scans to unlock. These advanced locks provide an extra layer of protection.



Lockpicking is the skill of opening a lock without using the correct key or combination. It requires specialized tools and techniques. While it may seem like something only done by criminals, lockpicking can also be a hobby for security professionals and locksmith near me who aim to understand the inner workings of locks.


The Largest Key Collection:

A man named Harry Houdini, who was famous for his escape acts, had a collection of over 5,000 keys from around the world. He collected keys as a hobby and enjoyed learning about the different types of locks they opened.