On this day in 1923 Garrett Morgan patented the traffic signal at a four way intersection.
- It worked better the next year when he added lights to the two other sides.
Have a great day and I’ll see you back here Wednesday!
-Dick
On this day in 1923 Garrett Morgan patented the traffic signal at a four way intersection.
- It worked better the next year when he added lights to the two other sides.
Have a great day and I’ll see you back here Wednesday!
-Dick