Kamehameha I unites Hawaii
Rival islands merge into a kingdom that lasts until 1893

After years of war the chief Kamehameha conquered the islands, and in 1810 the ruler of Kauaʻi accepted his rule. The Kingdom of Hawaii he founded lasted until American planters overthrew the monarchy in 1893.
Wikipedia (Russian) · Wikipedia (English) · 19th century
Meanwhile around the world (±25 years)
Europe
- 1789 Storming of the Bastille — 21 years earlier
- 1796 Jenner's first vaccination — 14 years earlier
- 1804 Coronation of Napoleon — 6 years earlier
- 1805 Battle of Trafalgar — 5 years earlier
- 1814–1815 Congress of Vienna — 4 years later
Eastern Europe & Russia
- 1812 Napoleon's invasion of Russia — 2 years later
Middle East
- 1828 Treaty of Turkmenchay — 18 years later
Africa
- 1798 Battle of the Pyramids — 12 years earlier
- 1804–1903 Usman dan Fodio's jihad and the Sokoto Caliphate — 6 years earlier
- 1805–1848 Muhammad Ali becomes ruler of Egypt — 5 years earlier
- c. 1835–1846 The Great Trek — 25 years later
Asia
- 1815 Eruption of Mount Tambora — 5 years later
- 1817–1824 First cholera pandemic — 7 years later
- 1819 Raffles founds modern Singapore — 9 years later
- c. 1831 Hokusai's Great Wave off Kanagawa — 21 years later
Americas
- 1791–1804 Haitian Revolution — 19 years earlier
- 1803 Louisiana Purchase — 7 years earlier
- 1810–1826 Spanish American wars of independence — same year
- 1817 San Martín's Crossing of the Andes — 7 years later
- 1822 Independence of Brazil — 12 years later
Alive at the time
- Johann Wolfgang von Goethe (aged 61)
- Napoleon Bonaparte (aged 41)
- Ludwig van Beethoven (aged 40)
- Simón Bolívar (aged 27)
- Alexander Pushkin (aged 11)
- Charles Darwin (aged 1)
- Abraham Lincoln (aged 1)
- James Watt (aged 74)
- George III (aged 72)
- Thomas Jefferson (aged 67)