The world's first traffic light was installed in London, England in 1868. It was lit by gas, manually operated, and exploded less than a month after it was installed, injuring the policeman who operated it. Today, stoplights follow a universal color code, which means a stoplight is a stoplight no matter where you are in the world. So, with our stoplight coffee mugs, red always means stop and green always means go.
The world's first traffic light was installed in London, England in 1868. It was lit by gas, manually operated, and exploded less than a month after it was installed, injuring the policeman who operated it. Today, stoplights follow a universal color code, which means a stoplight is a stoplight no matter where you are in the world. So, with our stoplight coffee mugs, red always means stop and green always means go.
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