The first all-metal locks appeared between the years 870 and 900, and are attributed to the English craftsmen. It is also said that the key was invented by Theodorus of Samos in the 6th century BC. 'The Romans invented metal locks and keys and the system of security provided by wards.

Where did the lock come from?

Early history. The lock originated in the Near East; the oldest known example was found in the ruins of the palace of Khorsabad near Nineveh. Possibly 4,000 years old, it is of the type known as a pin tumbler or, from its widespread use in Egypt, an Egyptian lock.

Where is the key lock key?

Location. The lock keys are scattered around the keyboard. Most styles of keyboards have three LEDs indicating which locks are enabled, in the upper right corner above the numpad. Some ergonomic keyboards instead place the lock indicators in between the key split.