Argentine Confederation
During the second government of Juan Manuel de Rosas, Confederación Argentina (Argentine Confederation) was the main name used for the young country, but others were also used, including "República de la Confederación Argentina" (Republic of the Argentine Confederation) and "Federación Argentina" (Argentine Federation). Justo José de Urquiza deposed Rosas in the battle of Caseros and called for a Constituent Assembly that would write the Constitution of Argentina of 1853. Buenos Aires did not accept it, and seceded from the Confederation as the State of Buenos Aires. For a decade, Buenos Aires and the Confederation existed