In 1513, Vasco Nunez de Balboa made an expedition with a 190 men that included sailing first to the Darien Peninsula before traveling by land through parts of the Isthmus of Panama that had difficult terrain. On this overland expedition, Balboa and his men had to fight with Indian tribes. He first sighted the eastern portion of the Pacific Ocean from a mountain and then continued on his journey to this ocean's shore, claiming it for Spain.
It took over a month for Balboa and his men to make this journey. To reward Balboa for this feat, King Ferdinand II made him governor of the provinces of Panama and Coiba.
Vasco Nunez de Balboa was born in 1475. In 1511, Balboa helped to establish the settlement of Darien, which became the first Spanish settlement in South America. He was beheaded in 1519 after being falsely accused of treason.