1821; it was the last country in South America to gain its independence.
Peru gained independence from Spain on July 28th 1821.
Yemen obtained its independence from its colonists in 1918.
Croatia obtained its independence from its colonists in 1822.
Georgia obtained its independence from its colonists in 1776.
Hungary obtained its independence from its colonists in 1001.
Portugal obtained its independence from its colonists in 1143.
Mongolia obtained its independence from its colonists in 1206.
Thailand obtained its independence from its colonists in 1238.
Andorra obtained its independence from its colonists in 1278.
Monaco obtained its independence from its colonists in 1419.
Oman obtained its independence from its colonists in 1650.
Nepal obtained its independence from its colonists in 1768.