1782
| 1782 • The British parliament extends James Watt's patent for the steam engine to the year 1800. |
about
Age: 18y
1800
Age: 18y
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birth of childMary McDonald Ireland ⇓ 1 Source ⇓ |
| 1800 • Alessandro Volta describes his new invention, the voltaic pile, the first chemical battery, in a letter to the Royal Society of London. |
1866
Age: 84y
| 1866 • The Royal Aeronautical Society is formed in London. |