First discovered by Juan Diaz de Solis, it received its present name from Sebastian Cabot, though it was governed by Cabeza de Vaca. José Hernández founded a newspaper in 1874 with it in the title. Charles III of Spain created a new viceroyalty in 1776 called by this name. Towns very near its banks include a namesake one, Carmelo, Berazategui, and 
First discovered by Juan Diaz de Solis, it received its present name from Sebastian Cabot, though it was governed by Cabeza de Vaca. José Hernández founded a newspaper in 1874 with it in the title. Charles III of Spain created a new viceroyalty in 1776 called by this name. Towns very near its banks include a namesake one, Carmelo, Berazategui, and Morón. Roughly horn-shaped, it widens from 30 miles at its tip to 136 miles at its base, long after it has received the Paraná and Uruguay Rivers. With Buenos Aires and Montivideo on its banks, FTP, this is what prominent estuary of South America named for its legendary silver.
First discovered by Juan Diaz de Solis, it received its present name from Sebastian Cabot, though it was governed by Cabeza de Vaca.
Rio {de la Plata} or River {Plate}