GENERAL KNOWLEDGE

Detailed explanation-1: -Garrett Morgan was born in Paris, Kentucky, on March 4, 1877, and was the seventh of 11 children. He invented the three position traffic signal. After witnessing an accident on a roadway, Morgan decided a device was needed to keep cars, buggies and pedestrians from colliding.

Detailed explanation-2: -Morgan’s other major invention, a traffic light (1923), was important in that it used a third, cautionary signal between “stop” and “go.” Morgan sold his traffic light to General Electric Co. for $40, 000 in 1923.

Detailed explanation-3: -“My grandfather’s great improvement, ‘’ Sandra says, “was the ‘all hold’-what is now the amber light.” Morgan patented the three-position traffic signal in 1923 and soon sold the idea to General Electric for $40, 000 (the equivalent of about $610, 000 today).