1822 battle
Battle
Battle of Riobamba
1822 battle
- 21 April 1822
- South America
Meanwhile, elsewhere
- 1789 – 1799French RevolutionEurope
- 17th century – 19th centuryAge of EnlightenmentEurope
- 1845 – 1852Great Irish FamineEurope
- 1846 – 1848Mexican-American WarMesoamerica and the Caribbean
- 1815 – 1871Unification of ItalyEurope
- 24 June 1812French invasion of RussiaEurope
- 1839 – 1842First Opium WarEast Asia
- 30 April 1803Louisiana PurchaseNorth America