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James Watt invents steam engine
Jan 1769, James Watt invents steam engine -
Invention of steam ship
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First successful trail in a steam boat
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Model steamboat built that ran four times
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First steam boat built
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Invention of the first electric light
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Stevens demonstrated the feasibilty of steam locomotive
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Baltimore and Ohio railroad were built
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Famous day for American transportation
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30,000 miles of railway track in use
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Invention of traffic lights
