The history of the lock and key dates back to antiquity when the ancient Egyptians developed a device that could effectively lock a door. It proved a revolutionary invention. Suddenly, humans could ensure privacy and protect their valuables.
Four thousand years later, we think nothing of unlocking a phone by swiping. But to get where we are today has taken centuries of craftsmanship, technology, and ingenuity. So, how did the lock and key evolve, and who can we thank for keeping us safe and more secure?
To find out, click through to unlock this gallery.