Europeans had first arrived at the mouth…
1541 CE
Europeans had first arrived at the mouth of the Rio de la Plata with the 1502 voyage of Amerigo Vespucci.
The Spanish navigator Juan Díaz de Solís had visited the territory that is now Argentina in 1516.
Pedro de Mendoza had in 1536 established a small settlement at the modern location of Buenos Aires, which is abandoned in 1541.
Álvar Núñez Cabeza de Vaca has written about his North American experiences in a report for Emperor Charles V. The Spanish explorer had desired to succeed Pánfilo de Narváez (whose ineptitude had caused the deaths of most of the party) as governor of Florida and return there, but the emperor had already appointed Hernando De Soto to lead the next expedition.
Declining to travel with the expedition as second in command, Cabeza de Vaca had jealously refused to give his compatriots any details of the country that might prepare them for the hardships they would surely face.
He is instead in 1541 appointed governor of the Río de la Plata, in what is now Argentina and surroundings.
Following yet another in a relentless series of attacks by indigenous Guarani peoples against the Spanish inhabitants of Buenos Aires, the Spaniards abandon the ruined settlement in favor of ...