Portal:Argentina/Anniversaries/April/April 6

• 1661: Establishment of the Royal Audiencia of Buenos Aires
• 1811: Forces loyal to Cornelio Saavedra remove the supporters of Mariano Moreno from the Junta Grande
• 1852: Signing of the Protocol of Palermo, which gave Justo José de Urquiza the management of the international relations of the Argentine Confederation
• 1987: Pope John Paul II visits Argentina for the second time