The document summarizes key events of Spanish colonization of the Philippines: 1) In 1521, Ferdinand Magellan arrived in the Philippines and claimed the islands for Spain, establishing their colonial rule. 2) Over subsequent decades, Spanish expeditions sought to establish settlements and consolidate control over the islands, founding cities like Cebu and Manila. 3) Spain introduced colonial institutions to their Philippine colonies like the encomienda system which gave land and native populations to colonists and required tribute, along with the reduccion policy of resettling populations.