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The first traffic lights were installed in London in 1868 — because chaos needed a color palette.

✓ TRUE FACT
London introduced an early traffic signal system to control intersections, initially using gas-lit signals and manual operation. It was a precursor to modern electric traffic lights, which became widespread later as car traffic grew.

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The first traffic lights were installed in London in 1868 — because chaos needed a color palette. | SmartAss Facts