10/20/2026
Here's a Connecticut story most people have never heard. And you're carrying the proof in your pocket right now.
About 4,000 years ago, the ancient Egyptians built wooden locks that used pins to hold a bolt in place.
Fast forward to the 1800s. An American inventor named Linus Yale Sr. builds a pin tumbler lock based on that same ancient idea. His son, Linus Yale Jr., actually wanted to be a portrait painter. He gave that up, joined the family trade, and in the 1860s patented the small cylinder lock with the flat, notched key.
The same shape of key you used this morning.
Then, in October of 1868, he and his partner Henry Towne founded the Yale Lock Manufacturing Company. Right here in Stamford, Connecticut. It started with around 35 employees and grew into a global company with more than 12,000.
Yale Jr. never saw any of it. He died that Christmas, just two months later.
(And no, it has nothing to do with Yale University. Different Yale entirely.)
So every time you turn your key, a few tiny pins line up on a line thinner than a hair, and a 4,000-year-old idea perfected in Connecticut does its job. That little mechanism is where we spend our days.
Be honest: did you know the modern lock was born in our state? What's your favorite piece of Connecticut history? 🔑
