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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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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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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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