Antonio Pigafetta accompanied Ferdinand Magellan on the first circumnavigation of the world from 1519-1522. His journal provides valuable first-hand accounts of the expedition's encounters with indigenous peoples in South America and the Philippines. It describes Magellan establishing alliances with local leaders and the first Catholic mass in the Philippines. However, Magellan was killed in the Battle of Mactan against Lapu-Lapu's forces in 1521. Pigafetta's journal is a primary source that has helped historians understand the customs and way of life of 16th century Filipinos.