Every driver who slows for a yellow light is responding to an idea refined by Garrett Morgan, a self-taught inventor born to formerly enslaved parents who reshaped public safety twice over. His three-position traffic signal introduced the pause between stop and go that earlier devices lacked, and his earlier breathing apparatus saved lives in one of Cleveland’s worst industrial accidents. Both achievements were nearly erased from the public record because of his race.
From A Sixth-Grade Education To A Patent
Morgan’s path to invention was unlikely. Born on March 4, 1877, in Kentucky, Garrett Augustus Morgan went on to become an inventor, businessman, and community leader. He left formal schooling early and taught himself the skills that would carry him through a career in safety devices. He had only a sixth-grade education but possessed an inventor’s mind that saw problems as opportunities. He built a successful business first in tailoring and hair-care products, which gave him the financial footing to keep inventing.
The Safety Hood And A Tunnel Rescue
Before the traffic signal came the device that first brought Morgan national attention. In 1912, Morgan received a patent on a Safety Hood and Smoke Protector, and a refined model later won gold medals at a major safety exposition and from the International Association of Fire Chiefs. The hood drew clean air from near the ground, below the level where smoke tends to rise, allowing the wearer to breathe in hazardous conditions.
Its value became undeniable in 1916. In July 1916 an explosion occurred during construction of a tunnel 120 feet under Lake Erie, and after some 10 would-be rescuers died in the gas and smoke, officials turned to Morgan, who entered the tunnel wearing the safety hood and saved eight men. The rescue made headlines, but Morgan’s role was frequently left out of the coverage.
The omission was not accidental. The publicity hurt sales once the public became aware that Morgan was Black, and many refused to purchase his products, while reports of the explosion sometimes named others as the rescuers. He was nominated for a Carnegie Medal for the rescue but did not receive it. The discrimination had shaped his sales strategy even earlier; to sell the hood in some markets, Morgan had hired a white actor to pose as the inventor while he demonstrated the device himself.
Rethinking The Traffic Signal
Morgan’s most widely felt invention grew out of a scene on a Cleveland street. After witnessing a collision involving an automobile and a horse-drawn carriage, he set out to fix a flaw in the signals of the day. At the time, most traffic signals offered only two commands, stop and go, that switched with no interval between them, making collisions common as vehicles already in an intersection had no time to clear.
His solution added a third state. Morgan’s hand-operated signal stopped traffic “in all directions before the signal to proceed in any one direction is given,” allowing vehicles already in an intersection to pass through safely. That all-directional stop was the conceptual forerunner of today’s amber light. It is worth noting that his device was a T-shaped mechanical post with movable arms rather than a colored electric lamp; the yellow bulb familiar today came later, built on the principle his design established.
Morgan was also not the first person to build a traffic signal, a distinction the record keeps clear. While other inventors are reported to have experimented with and even marketed their own three-position traffic signals, Garrett A. Morgan was the first to apply for and acquire a U.S. patent for such a device, granted on November 20, 1923. He later secured patents in Great Britain and Canada as well.
A Sale That Shaped The Modern Light
Morgan did not commercialize the signal himself. He sold the rights to General Electric for $40,000, a sum equivalent to more than $700,000 today, and the company developed the electric version that evolved into the signals now standard at intersections worldwide. For an inventor who had struggled against buyers’ prejudice, the sale represented both recognition and a practical exit from a market that had often worked against him.
Morgan continued working in public life until his death in 1963, founding a newspaper and helping organize civil rights efforts in Cleveland. His two best-known inventions followed the same logic, anticipating a danger and building in a margin of safety before disaster struck. A century after his traffic-signal patent, his caution phase remains embedded in daily life, even as the man behind it spent much of his career fighting to be credited for work that was saving lives. Recognition has come more fully in the decades since, including his induction into the National Inventors Hall of Fame, restoring a name that contemporaries too often left out of the story.
