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2011-02-15 23:32:17
2011-02-15 23:32:17

The traffic light was made in 1823.


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The first traffic light was invented in 1903 by William L. Potts.

If a traffic light breaks most cities will assign a traffic cop to regulate traffic until the light can be fixed.

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Traffic Lights were invented by an engineer named J.P. Knight and the first one was put to use in 1868.

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The traffic light was invented to prevent collisions in an intersection

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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.

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In 1920 a traffic light was installed on Woodward and Michigan Avenues in Detroit. William L. Potts was the person who invented traffic lights. A year later, Detroit had 15 more automatic traffic lights.

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.

inventor of the traffic light

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