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Year |
Event(s) |
| 1 | 1839 | - American, Charles Goodyear invents rubber vulcanization.
- American, Thaddeus Fairbanks invents platform scales.
- Frenchmen, Louis Daguerre and J.N. Niepce co-invent Daguerreotype photography.
- Kirkpatrick Macmillan invents a bicycle.
- Welshmen, Sir William Robert Grove conceives of the first hydrogen fuel cell.
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| 2 | 1840 | - Englishmen, John Herschel invents the blueprint.
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| 3 | 1841 | - John Tyler president of the USA 1841-1845. John Tyler the first vice president to succeed to the presidency due to death of a president.
- Samuel Slocum patents the stapler.
- William H. Harrison president of the USA. William Henry Harrison succumbed to pneumonia 1841.
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| 4 | 1842 | - Joseph Dart builds the first grain elevator.
- Paving the streets of Cleveland, Ohio commences by laying down planks on the roads.
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| 5 | 1843 | - Alexander Bain of Scotland, invents the facsimile.
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| 6 | 1844 | - Englishmen, John Mercer invents mercerized cotton.
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1839 - 1844
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