Tacna

City · c. 1836 CE · in South America

Capital of Peru-Bolivian Confederation (1836–1839).

Coburg (c. 1836 CE): Capital of Saxe-Coburg and Gotha (1836–1839).
Houston (1836 CE): Capital of Republic of Texas (1837–1839).
Gotha (c. 1836 CE): Capital of Saxe-Coburg and Gotha (1836–1839).
Piratini (c. 1836 CE): Capital of Riograndense Republic (1836–1845).
Caçapava do Sul (c. 1836 CE): Capital of Riograndense Republic (1836–1845).
Ha'il (c. 1836 CE): Capital of Emirate of Jabal Shammar (1836–1921).
Washington-on-the-Brazos (c. 1836–1845 CE): Capital of Republic of Texas (1836–1845).
Austin (1835 CE): Capital of Republic of Texas (1839–1845).
Paraná (c. 1834 CE): Capital of Argentine Confederation (1834–1861).
Pietermaritzburg (1839 CE): Capital of Natalia Republic (1840–1843).

Around the same time and place

Battle of Ayacucho (1824 CE): Victory of Sucre's patriot army over the viceroy of Peru, which effectively ended Spanish rule in South America.
Antonio José de Sucre (1795 CE – 1830 CE): Venezuelan general and Bolívar's closest lieutenant, victor at Pichincha and Ayacucho and president of Bolivia (1825–1828).
War of the Pacific (1879–1884 CE): Chile fought Bolivia and Peru over the nitrate-rich Atacama Desert, taking Bolivia's coastline and southern Peruvian provinces.