9th Day of December

1868 – The first traffic lights are installed

Traffic lights, traffic signals, stoplights or robots are signalling devices positioned at road intersections, pedestrian crossings, and other locations to control flows of traffic.

Traffic lights follow a universal colour code which alternates the right of way accorded to users with a sequence of illuminating lamps or LEDs of three standard colours: Red, Green and Amber.

1868 – The first traffic lights are installed

The world’s first traffic light was a manually operated gas-lit signal installed in London on 9th December, 1868 outside the Palace of Westminster in London.

It resembling railway signals, they use semaphore arms and are illuminated at night by red and green gas lamps.

Extra Note: It exploded less than a month after it was implemented, injuring its policeman operator.

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