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What was used before traffic light was invented?
Police officers giving traffic signals.
When was the traffice light invented?
The first traffic light was invented in December 10, 1868. The electric traffic light was invented in 1912. The Automatic Traffic light was invented in 1927.
Who invented the gas mask and the traffic light?
the first traffic light was invented in usa i didin't know who invented it the first traffic light was not automatic someone is controling it that what i all know about the trafffic light i don't know who invented the gas mask
What was life before the traffic light was invented?
i dont know if u know plz tell me
Who evented the traffic light?
J.P. Knight is the person who invented the traffic light. J.P. Knight invented the traffic light in 1868 in an effort to prevent fatalities on the roads.
Who invented the gas mask and the electric traffic light?
the first traffic light was invented in usa i didin't know who invented it the first traffic light was not automatic someone is controling it that what i all know about the trafffic light i don't know who invented the gas mask
When is the traffic light invented?
The very first traffic light was a revolving gas lantern with red and green lights installed in a London intersection in 1868, before the advent of automobiles. A later version of the traffic light based on railroad signals was installed in Detroit, Michigan, in 1920.
When was the traffi light invented?
If you are asking about a traffic light then it was invented to prevent car accidents.
Who invented the signal light?
The traffic light as we know it today was invented by Garrett Augustus Morgan, the son of former slaves. Before that there was a gas lantern signal light in England, but that was before automobiles. There was a railroad light version later, but it wasn't like our modern version. If you didn't mean "traffic light" then i don't know.
What year is a traffic light invented?
1868
Where was traffic light invented?
in the 1920s in the us.
Where was the electric traffic light invented?
london
