State of Buenos Aires

State of Buenos Aires
Estado de Buenos Aires (Spanish)
1852–1861
Anthem: Himno Nacional Argentino
"Argentine National Anthem"
CapitalBuenos Aires
Common languagesSpanish
Religion
Catholicism
GovernmentRepublic
Governor 
• 1852
Manuel Pinto
• 1852
Valentín Alsina
• 1852-1853
Manuel Pinto
• 1853-1858
Pastor Obligado
• 1858-1859
Valentín Alsina
• 1859-1860
Felipe Llavallol
• 1860-1862
Bartolomé Mitre
History 
• Secession
11 September 1852
• Constitution
12 April 1854
30 August 1857
23 October 1859
17 September 1861
• Reunification
12 December 1861
Population
• 1855 census
248,498
CurrencyPeso moneda corriente
Preceded by
Succeeded by
Argentine Confederation
Argentine Republic

The State of Buenos Aires (Spanish: Estado de Buenos Aires) was a secessionist republic resulting from the overthrow of the Argentine Confederation government in the Province of Buenos Aires on 11 September 1852. The State of Buenos Aires was never explicitly recognized by the Confederation; it remained, however, independent under its own government and constitution. Buenos Aires rejoined the Argentine Confederation after the former's victory at the Battle of Pavón in 1861.