The traffic signal was invented in 1868 in London before the invention of the car. It was a revolving lantern with red and green signals. On Jan. 2, 1869 the light exploded hurting the policeman who was operating it. The next attempt was made by Detroit Police Officer who decided to make a light to control the increasing numbers of cars on the road. In 1920 he used a red, amber, and green railroad lights and 37.00 of wire to make the first 4 way light. Within a year Detroit had 15 lights controlling traffic. There is no mention of ethnicity of the inventors.
yes Garrett a morgon did invent the sewing machine
the black box flight recorder
Yes, there are many black inventors of the past and present. However, black people frequently get less credit for their inventions, and are often overshadowed by a white counterpart, or they are nearly wiped from history altogether with little knowledge around of what they've accomplished. Much of this is still so even in present times. Please see related links below.
The toilet seat has been around so long no one can claim to be the original inventor. However, a black man, Johnny Henry of Laurel, Mississippi recently patented a vibrating toilet seat.
No single person black, white, yellow or green invents technology. Technology is a body of knowledge added to by individuals and groups. Sometime it is known who added a part of that knowledge and when they did so. At other times is is not known, especially very early additions.
No
A police office named William Potts of Detroit Michigan in 1920 invented the traffic signal. His race is not mentioned.
No. He was British and white. He invented a form of the traffic light which resembled the railroad signals where he worked.
the black foot people spoke in either algonquin or there native black foot languageLanguage, drums, and smoke signals.
she invented hair products for black people
No, George Washington Carver invented lots of uses of the peanut and he was African American. Black people invent most everything because they are talented!
it was originated from blues so yes "we" did.
they invented paprus ,black ink,a writing system, and beer
yes, Egyptians did invent black ink.
No. Early Native Americans did. What you ask shows a stereo typing and is a form of discrimination.
Nope. It was a white guy. Martin Cooper in 1973. Nor did a black man invent the air conditioner, peanut butter, ice cream, traffic light, and a host of other poorly researched self esteem building myths that pop up in schools and local news pieces every February!
No