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Born, 11 February, Milan, Ohio
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Sells newspapers and sundries on train between Port Huron, Michigan, and Detroit
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Years as a traveling telegrapher
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Patents first invention, Boston
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Works on stock ticker and printing telegraph, New York
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First substantial income from an invention (stock ticker)
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Marries Mary Stilwell
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Quadruplex telegraph (sending four messages over a wire at the same time)
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Carbon-resistance telephone transmitter
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Pearl Street Station, New York
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Discovers and experiments with electrical discharge inside lamp (called "Edison Effect;" basis of the vacuum tube)
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Wife Mary dies
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Newer, larger laboratory, West Orange, New Jersey
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Concentrated activity on electromagnetic ore-separation work, Ogdensburg, New Jersey
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Attempts to find alternative sources of rubber
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Inauguration of Menlo Park laboratory as a museum, Dearborn, Michigan
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Dies October 18, West Orange, New Jersey