In which century did Ponce de Leon found Puerto Rico and discover Florida?

Ponce de Leon is known for his exploration and significant contributions to the early Spanish colonization of the Americas. He established the first European settlement in Puerto Rico in 1508 and is credited with the discovery of Florida during his search for the Fountain of Youth, which is believed to have occurred in 1513. Both of these key events took place in the early 16th century, specifically between the years 1500 and 1520, confirming that this period belongs to the 16th century.

The other centuries mentioned do not align with the timeline of Ponce de Leon's explorations and settlements; thus, they do not represent the correct period of his significant achievements in the New World.