Decembrist revolt
Officers demand a constitution on Senate Square

On 26 December 1825 noble officers led troops onto Senate Square, refusing to swear allegiance to Nicholas I and demanding a constitution. The revolt was crushed by artillery; five leaders were hanged and over a hundred exiled to Siberia.
Wikipedia (Russian) · Wikipedia (English) · 19th century
Did you know
1825: the first public steam railway opened in England, and in St Petersburg the Decembrists marched onto Senate Square.
Meanwhile around the world (±25 years)
Europe
- 1804 Coronation of Napoleon — 21 years earlier
- 1814–1815 Congress of Vienna — 11 years earlier
- 1816 Year Without a Summer — 9 years earlier
- 1833 Abolition of slavery in the British Empire — 8 years later
- 1845–1852 Great Famine in Ireland — 20 years later
Middle East
- 1828 Treaty of Turkmenchay — 3 years later
- 1839 The Edict of Gülhane opens the Tanzimat — 14 years later
- 1839–1842 First Anglo-Afghan War — 14 years later
Africa
- 1804–1903 Usman dan Fodio's jihad and the Sokoto Caliphate — 21 years earlier
- 1805–1848 Muhammad Ali becomes ruler of Egypt — 20 years earlier
- c. 1835–1846 The Great Trek — 10 years later
- 1847 Liberia declares independence — 22 years later
Asia
- 1815 Eruption of Mount Tambora — 10 years earlier
- 1817–1824 First cholera pandemic — 8 years earlier
- 1819 Raffles founds modern Singapore — 6 years earlier
- c. 1831 Hokusai's Great Wave off Kanagawa — 6 years later
- 1839–1842 First Opium War — 14 years later
Americas
- 1803 Louisiana Purchase — 22 years earlier
- 1817 San Martín's Crossing of the Andes — 8 years earlier
- 1822 Independence of Brazil — 3 years earlier
- 1835 Darwin in the Galápagos — 10 years later
- 1838–1839 Trail of Tears — 13 years later
Alive at the time
- Johann Wolfgang von Goethe (aged 76)
- Ludwig van Beethoven (aged 55)
- Simón Bolívar (aged 42)
- Alexander Pushkin (aged 26)
- Charles Darwin (aged 16)
- Abraham Lincoln (aged 16)
- Karl Marx (aged 7)
- Queen Victoria (aged 6)
- Fyodor Dostoevsky (aged 4)
- Thomas Jefferson (aged 82)