Vasco Núñez de Balboa, a Spanish explorer and governor, is renowned for his expedition that led him to become the first European to sight the Pacific Ocean from the New World. In September, Balboa, having established a settlement in present-day Panama, embarked on a trek through the challenging landscapes of the Isthmus of Panama. With a small entourage, he navigated through thick jungles, traversed mountainous areas, and ultimately reached a high point overlooking the vast waters of the Pacific. The sight was both breathtaking and significant, leading to Balboa's immediate claim of the ocean on behalf of the Spanish crown.

The exploration was driven by ambitions to find new trade routes and riches, particularly a route to Asia. The claim made by Balboa was pivotal as it expanded the understanding of the geography of the New World and opened up future explorations and conquests in the Pacific region. Balboa is often celebrated for the bravery and determination displayed during the expedition, which faced numerous natural hardships and logistical challenges, including food shortages and hostile encounters with indigenous tribes.

Following this expedition, Balboa’s findings would later encourage further exploration by other Spanish conquistadors, enabling Spain to establish a strong presence in the region. His journey amplified European interest in the Pacific and led to subsequent expeditions that would change the course of world history and trade.