Argentina By facebooker_1433940271 Feb 1, 1516 Juan Diaz de Solis enters Argentina Feb 1, 1580 Buenos Aires Established Info: Buenos Aires was established as Argentina’s capitol in 1580 Impact: This impacts the government of Argentina. Feb 4, 1810 Argentine War for Independence Starts Jul 9, 1816 Argentina Officialy Becomes Independent Info: Argentina declared independence on July 9, 1816. Impact: This impacts how Argentina is view by other countries. Feb 4, 1853 Argentina Becomes a Republic Feb 4, 1956 The Constitution of 1853 was Restored