Respuesta :

Answer:

Ponce de leon

Explanation:

 while it is true that christopher columbus visited  puerto rico and the virgin islands in 1493 ,  ponce de leon was the first known european to reach the  present day united states mainland, on  september 25, 1513,  vasco nunez de balboa the spanish conquistador  was the first european  to see the pacific ocean  once he crossed the isthmus of panama.