The Battle of Mactan took place on April 27, 1521, in the Philippines. It was a conflict between the forces of the Spanish explorer Ferdinand Magellan and the local warriors led by Lapu-Lapu, a chieftain of Mactan Island. Magellan aimed to assert Spanish control over the islands and convert the locals to Christianity. During the battle, Lapu-Lapu and his men successfully resisted Magellan's forces, resulting in the death of the explorer. This event is significant in Philippine history as it symbolizes resistance against foreign colonization and is celebrated as a national hero's stand against oppression.