States and territories disestablished in 1828

18th-century khanate

former country

18th–19th century Iranian Khanate

Cisplatina (, ) was a Brazilian province in existence from 1821 to 1828 created by the Luso-Brazilian invasion of the Banda Oriental. From 1815 until 1822 Brazil was a constituent kingdom of the United Kingdom of Portugal, Brazil and the Algarves. After the independence of Brazil and the formation of the Empire of Brazil the Cisplatina province remained part of it. In 1828, following the Preliminary Peace Convention, the Cisplatina province became independent as Uruguay.

1778–1828 Cossack polity in the Danube Delta

the period when Eastern Armenia was part of the Iranian empire