The Evolution of Locks: 4,000 Years of Security 🔑 From wooden pin mechanisms in ancient Mesopotamia and Egypt to the sophisticated smart locks we use today, locks have evolved alongside human civilization. Romans introduced metal keys, medieval Europe turned locks into symbols of wealth, and inventors like Robert Barron and Linus Yale shaped the designs still in use worldwide. Every stage reflects our constant need to balance security, technology, and trust. #reels #viral #explore #history #cre