Mississippi, Rio Grande and Rio Nueces have various common things: the three rivers flow into Texas, they were named by the Spanish explorers with a name that is no longer in use and were also discovered by the main character of this new episode of “The untold history”. This episode narrates the successes and misfortunes of the Spanish explorer, sailor and cartographer who sketched much of the coast of the Gulf of Texas: Alonso Álvarez de Pineda.