1817 - 1822 (4 years)
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Date |
Event(s) |
| 1 | 1817 | |
| 2 | 1818 | |
| 3 | 1819 | |
| 4 | 1820 | - 1820: UK - A radical plot to murder the Cabinet, known as the Cato Street Conspiracy, fails
- 1820: UK - Trial of Queen Caroline, in which George IV attempts to divorce her for adultery
- 1820: UK - Death of George III, blind and insane
- 1820: UK - London's population estimated at 1,274,000
- 1820: UK - Government finances scheme to send out 6,000 settlers to Cape in South Africa
- 1820: UK - George IV, ruler of England to 1830. House of Hanover: Eldest son of George III, Prince Regent, from Feb 1811.
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| 5 | 1821 | |
| 6 | 1822 | - 1822: France - First prototype Espresso machine
- 1822: Ireland - Famine in Ireland prompts migration to US and Canada
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