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Question
Back in ________, the first pedestrian crossing signal was erected in Bridge Street, Westminster, London.
Back in ________, the first pedestrian crossing signal was erected in Bridge Street, Westminster, London.
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Solution
The correct option is A 1868
Back in 1868, the first pedestrian crossing signal was erected in Bridge Street, Westminster, London. The signal used gas illuminated green and red lights which were run by a police officer manually, but in 1869 the gas used to illuminate the lamps leaked and caused an explosion.
Back in 1868, the first pedestrian crossing signal was erected in Bridge Street, Westminster, London. The signal used gas illuminated green and red lights which were run by a police officer manually, but in 1869 the gas used to illuminate the lamps leaked and caused an explosion.
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