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The wheel is invented by the Sumerians.
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Roads were created around 4000BC.
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Boats were created around 3000BC.
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The bicycle is invented in Scotland.
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The ambulance was invented in 1792.
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Around 1800 bridges were invented.
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Trains were invented.
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The first car was invented in 1886.
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The first 18 wheeler was invented in 1898.
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The first airplane was invented in 1903.
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Stop signs were invented in 1915.
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The traffic signal is invented in the United States.
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Trucks were invented in 1937.
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Helicopters were invented in 1939.
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The seat belt is invented in Sweden.
