Without doubt Catholicism can be considered the first and most influential organised faith in the religious history of Argentina . The religion came over from Europe when the first voyages of discovery were made in 1502 with the voyage of Amerigo Vespucci. The Spanish navigator Juan Díaz de Solís visited the areas now known as Argentina in 1516. In 1536 the Spaniards founded a small settlement. The first permanent colony was actually on the site on modern day Buenos Aires in 1580 which at that time was part of the Viceroyalty of Peru.