State of Buenos Aires

State of Buenos Aires
Estado de Buenos Aires
1852–1861
Anthem: Argentine National Anthem
"National Argentine Anthem"
CapitalBuenos Aires
Common languagesSpanish
GovernmentRepublic
Governor 
• 11 September — 31 October 1852
Manuel Pinto
• 31 October — 7 December 1852
Valentín Alsina
• 7 December 1852 — 28 June 1853
Manuel Pinto
• 28 June 1853 — 21 December 1858
Pastor Obligado
• 21 December 21 — 23 October 1859
Valentín Alsina
• 23 October 23 — 3 May 1860
Felipe Llavallol
• 3 May 1860 — 11 October 1862
(as provincial governor after 1861)
Bartolomé Mitre
History 
11 September 1852
• Enactment of Constitution
12 April 1854
30 August 1857
23 October 1859
17 September 1861
• Establishment of the Argentine Republic
12 December 1861
Population
• 1855 census
248,498
Currencypeso moneda corriente
Preceded by
Succeeded by
Argentine Confederation
Argentina
Delegates swear allegiance to the 1854 Constitution of Buenos Aires.

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.