The Philippines, officially known as the Republic of the Philippines, is a sovereign island country in Southeast Asia situated in the western Pacific Ocean. It consists of 7,107 islands that are categorized broadly under three main geographical divisions: Luzon, Visayas, and Mindanao. Its capital city is Manila while its most populous city is Quezon City; both are part of Metro Manila.To the north of the Philippines across the Luzon Strait lies Taiwan; Vietnam sits west across the South China Sea; southwest is the island of Borneo across the Sulu Sea, and to the south the Celebes Sea separates it from other islands of Indonesia; while to the east it is bounded by the Philippine Sea and the island-nation of Palau. Its location on the Pacific Ring of Fire and close to the equator makes the Philippines prone to earthquakes and typhoons, but also endows it with abundant natural resources and some of the world's greatest biodiversity. At approximately 300,000 square kilometers, the Philippines is the 64th-largest country in the world.With a population of at least 99 million people, the Philippines is the seventh-most populated country in Asia and the 12th most populated country in the world. An additional 12 million Filipinos live overseas, comprising one of the world's largest diasporas. Multiple ethnicities and cultures are found throughout the islands. In prehistoric times, Negritos were some of the archipelago's earliest inhabitants. They were followed by successive waves of Austronesian peoples. Various nations were established under the rule of Datus, Rajahs, Sultans or Lakans. Trade with China, Malay, Indian, and Islamic states occurred.The arrival of Ferdinand Magellan in 1521 marked the beginning of Spanish colonization. In 1543, Spanish explorer Ruy López de Villalobos named the archipelago Las Islas Filipinas in honor of Philip II of Spain. With the arrival of Miguel López de Legazpi in 1565, the first Spanish settlement in the archipelago was established, and the Philippines became part of the Spanish Empire for more than 300 years. This resulted in the predominant religion in the country being Roman Catholicism. During this time, Manila became the Asian hub of the Manila–Acapulco galleon trade.As the 19th century gave way to the 20th, there followed in quick succession the Philippine Revolution, which spawned the short-lived First Philippine Republic, and the Philippine–American War. Aside from the period of Japanese occupation, the United States retained sovereignty over the islands. After World War II, the Philippines was recognized as an independent nation. Since then, the Philippines has had an often tumultuous experience with democracy, which includes a People Power Revolution overthrowing a dictatorship. The nation's large population size and economic potential have led it to be classified as a middle power. It is a founding member of the United Nations, World Trade Organization, Association of Southeast Asian Nations, and East Asia Summit.