Portal:Argentina/Anniversaries/April/April 5
- 1818: José de San Martín secures the independence of Chile at the battle of Maipú
- 1827: Carlos María de Alvear defeats a Brazilian force at the battle of Camacuá
- 1849: Death of general Mariano Necochea
- 1990: The Supreme Court of Argentina is expanded from five members to nine.