Answer:
1500's
Explanation:
The first recorded exploration of today's Texas was made in the 1530s by Alvar Núñez Cabeza de Vaca, along with two other Spaniards and a Moorish slave named Estevanico. ... In 1540, Francisco Vázquez de Coronado was commissioned to lead an exploration of the American Southwest.
I hope this helps you :)
