Who was the first to cirmcumnavigate the world?

Ferdinand Magellan is credited as the first person to lead an expedition that circumnavigated the globe. Although he did not complete the journey himself—he was killed in the Philippines in 1521—his fleet continued under the command of Juan Sebastián Elcano, successfully returning to Spain in 1522. This expedition demonstrated the vastness of the Earth and opened up new maritime routes for exploration and trade.