If you've just finished a frustrating commute crawling through traffic, imagine how much worse your daily drive might be without some roadway essentials,
like lane markers, speed limit signs — and the traffic light.
Red, yellow, green, those three colors have become a ubiquitous part of our modern lives, but it wasn't always that way. In fact,
the first electric traffic light didn't make its appearance until nearly a year after Henry Ford switched on the world's first moving assembly line.
As with many breakthroughs, there are plenty of conflicting claims, but historians generally agree that the first true stoplight was installed on the
corner of Euclid and 105th in Cleveland 100 years ago this week.