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Date |
Event(s) |
| 1 | 1820 | - 1820: George IV. Ruler of England 1820-1830. House of Hanover: Eldest son of George III, Prince Regent, from Feb 1811.
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| 2 | 1823 | - 1823: Mackintosh (raincoat) invented by Charles Mackintosh of Scotland.
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| 3 | 1824 | - 1824: Professor Michael Faraday invents the first toy balloon.
- 1824: Englishmen, Joseph Aspdin patents Portland cement, the modern building material.
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| 4 | 1825 | - 1825: John Quincy Adams president of the USA 1825-1829.
- 1825: William Sturgeon invented the electromagnet.
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| 5 | 1827 | - 1827: Charles Wheatstone invents the microphone.
- 1827: John Walker invents the modern matches.
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1820 - 1827 (6 years)