Mindanao (, ) is the second-largest island in the Philippines, after Luzon, and seventh-most populous island in the world. Located in the southern region of the archipelago, the island is part of an island group of the same name that also includes its adjacent islands, notably the Sulu Archipelago. According to the 2020 census, Mindanao had a population of 26,252,442, while the entire island group had an estimated population of 27,384,138 as of 2024.

Mindanao is divided into six administrative regions: the Zamboanga Peninsula, Northern Mindanao, the Caraga region, the Davao region, Soccsksargen, and the autonomous region of Bangsamoro. According to the 2020 census, Davao City is the most populous city on the island, with 1,776,949 people, followed by Zamboanga City (pop. 977,234), Cagayan De Oro (pop. 728,402), General Santos (pop. 722,059), Butuan (pop. 372,910), and Cotabato City (pop. 325,079).

The vast majority of Mindanao's residents declare affiliation to various Christian groups, tantamounting roughly to two thirds of the population, while the Islamic religion sums up the island's (and the country's) largest minority, which has been reported or estimated to represent from 15 to 25%. Ethnic minority groups in Mindanao whose members are predominantly Islamic account for most of Muslims in Philippines. The Bangsamoro Autonomous Region in Muslim Mindanao (BARMM) stands out as the most predominantly Islamic region, where, according to the 2020 census, above 89% of the population identified as Muslims. Reports on religious demographics are often considered unreliable or inaccurate, though, as Mindanao is a deeply-divided society. Humanists, atheists, Muslims, and other religious minorities are concerned about discrimination, and human rights abuses have been denounced. Therefore, the appropriate methodology to access its ethno-religious diversity is disputed. The Philippine government's inherent failure to measure religious demographics is also argued by the National Commission on Muslim Filipinos (NCMF).

Mindanao is considered the major breadbasket of the Philippines.

Etymology The name Mindanao is derived from a compound word in the Maguindanao language: min, a past tense verb prefix, and danao, meaning 'lake'. Together, they translate to 'land of where the lakes are found'. This name is also associated to the Maguindanaon people, where the Sultanate of Maguindanao once held significant influence, and where lakes with varying depths are also common among the provinces of Mindanao.

History Prehistory

Archaeological findings on the island point to evidence of human activity dating back about ten thousand years. Around 1500 BC, Austronesian people spread throughout the Philippines.

The Subanon are believed to have settled in the Zamboanga Peninsula during the Neolithic era c. 4500–2000 BC. Evidence of stone tools in Zamboanga del Norte may indicate a late Neolithic presence. Ceramic burial jars, both unglazed and glazed, Chinese celadons, gold ornaments, beads, and bracelets have been found in caves. Many of the ceramic objects are from the Yuan and Ming periods. Evidently, there was a long history of trade between the Subanon and the Chinese.

Rajahnates and Hindu-Buddhism

In the classic epoch of Philippine history (900 AD onwards), the people of Mindanao were heavily exposed to Hindu and Buddhist influence and beliefs from Indonesia and Malaysia. Indianized abugida scripts such as Kawi and baybayin were introduced from Java and an extinct intermediate from Sulawesi or Borneo respectively. Cultural icons of the sarong (known as malong or patadyong), the pudong turban, silk, and batik and ikat weaving and dyeing methods were introduced. Artifacts found from this era include a golden kinnara, a golden image believed by some to be a Tara, and a Ganesha pendant. These cultural traits passed from Mindanao into the Visayas and Luzon, but were subsequently lost or heavily modified after the Spanish arrival in the 16th century.

Hindu-Buddhist cultural influence took root in coastal settlements, syncretizing with indigenous animist beliefs and customs among the tribes of the interior. The Butuan Rajahnate, a Hinduized kingdom mentioned in Chinese records as a tributary state in the 10th century, was concentrated along the northeastern coast of Butuan Bay. The Rajahnate of Sanmalan in Zamboanga, was also in Mindanao. The Darangen epic of the Maranao people harkens back to this era as the most complete local version of the Ramayana. The Maguindanao at this time also had strong Hindu beliefs, evidenced by the Ladya Lawana (Rajah Ravana) epic saga that survives to the present, albeit highly Islamized from the 17th century onward.

Sultanates and Islam

The spread of Islam in the Philippines began in the 14th century, mostly through the influence of Muslim merchants from the western Malay Archipelago. The first mosque in the Philippines was built in the mid-14th century in the town of Simunul, Tawi-Tawi. Around the 16th century, the Muslim sultanates of Sulu, Lanao and Maguindanao were established from formerly Hindu-Buddhist rajahnates.

As Islam colonised Mindanao, the natives of the sultanates had to either convert to Islam or pay tribute to their new Muslim rulers. The largest of the Muslim polities in mainland Mindanao was the Sultanate of Maguindanao, which controlled the southern floodplains of the Rio Grande de Mindanao and most of the coastal area of Illana Bay, Moro Gulf, Sarangani Bay and Davao Gulf. The name Mindanao was derived from this sultanate. But most of Mindanao remained animist, especially the Lumad people in the interior. Most of the northern, eastern, and southern coastal regions inhabited by Visayans (Surigaonon and Butuanon) and other groups were later converted to Christianity by the Spanish. Mindanao was then embroiled between a conflict with the Boholano (Visayan) Dapitan Kingdom and the Moluccan Sultanate of Ternate. Dapitan which was originally at Bohol was destroyed by an expeditionary force from the Ternate Sultanate and Dapitenyos were forced to relocate to Northern Mindanao where they waged war against the Sultanate of Lanao and established a new Dapitan there. Mindanaoans then spread out of Mindanao across Southeast Asia, Historian William Henry Scott, quoting the Portuguese manuscript Summa Orientalis, noted that Mottama in Burma (Myanmar) had a large presence of merchants from Mindanao. Quoting from; Cortes 30, Suma, pp. 376–77, and 362.

Spanish colonization and Christianity

In 1521 Antonio Pigafetta wrote an account of reaching 'Maingdano.' He was with Magellan on the first circumnavigation of the globe and sailing for the king of Spain.Magellan's Voyage, Antonio Pigafetta. Chapter XXXIV

On February 2, 1543, Ruy López de Villalobos was the first Spaniard to reach Mindanao. He called the island "Caesarea Caroli" after Charles V of the Holy Roman Empire (and I of Spain). Shortly after Spain's colonization of Cebu, it moved on to colonize the Caraga region in northeast Mindanao and discovered a significant Muslim presence on the island. Over time a number of tribes in Mindanao converted to Catholicism and built settlements and forts throughout the coastal regions. These settlements endured despite attacks from neighboring Muslim sultanates. The most heavily fortified of them, apart from a short period in 1662 when Spain sent soldiers from the city to Manila after a threat of invasion from the Chinese general Koxinga, was Zamboanga City which was settled by soldiers from Peru and Mexico."SECOND BOOK OF THE SECOND PART OF THE CONQUESTS OF THE FILIPINAS ISLANDS, AND CHRONICLE OF THE RELIGIOUS OF OUR FATHER, ST. AUGUSTINE" (Zamboanga City History) "He (Governor Don Sebastían Hurtado de Corcuera) brought a great reënforcements of soldiers, many of them from Perú, as he made his voyage to Acapulco from that kingdom." The sultanates resisted Spanish pressure and attempts to convert them to Christianity during this period. The Sultanate of Ternate of the Maluku Islands formed a close alliance with the sultanates of Mindanao, especially Maguindanao. Ternate regularly sent military reinforcements to Mindanao to assist the local sultanates in their war against Spanish-controlled Manila.

By the late 18th century Spain had geographic dominance over the island, having established settlements and forts in most of Mindanao, including Zamboanga City and Misamis Occidental to the northwest, Iligan City, Misamis Oriental, Bukidnon, and Camiguin Island to the north, Surigao and Agusan in the Caraga region to the east, and Davao in the island's gulf coast. Spain continued to engage in battles with Muslim sultanates until the end of the 19th century.

At the same time as the Philippine revolution against Spain, the Republic of Zamboanga rose as a revolutionary state in Mindanao before it was absorbed by the oncoming Americans.

American occupation and Philippine Commonwealth

In the Treaty of Paris in 1898 Spain sold the entire Philippine archipelago to the United States for $20 million. The 1900 Treaty of Washington and the 1930 Convention Between the United States and Great Britain clarified the borders between Mindanao and Borneo.

In the early 1900s the Commonwealth government (led by Americans) encouraged citizens from Luzon and Visayas to migrate to Mindanao. Consisting mostly of Ilocanos, Cebuanos, and Ilonggos. Settlers streaming into Soccsksargen led to the displacement of the Blaan and Tboli tribes.

Together with Palawan, Mindanao was part of an acquisition proposal in 1910 between then-United States ambassador to Denmark Maurice Francis Egan and several of his Danish friends. Under the proposal, the United States was to trade Mindanao and Palawan to Denmark for Greenland and the Danish West Indies, and Denmark could then trade Mindanao and Palawan to German Empire for Northern Schleswig, which was then under German rule. Egan's suggestion faded away when World War I erupted, and Denmark eventually regained Northern Schleswig after the German defeat in World War I following the 1920 Schleswig plebiscites.

World War II In April 1942 Mindanao, along with the rest of the Philippines, officially entered World War II after Japanese soldiers invaded key cities in the islands. Many towns and cities were burned to the ground in Mindanao, most notably Davao City, Zamboanga City, Lanao, Cagayan de Oro, Iligan City, and Butuan. In the months of April and May 1942, Japanese forces defeated US troops commanded by William F. Sharp and Guy Fort, in a battle that started at Malabang (a town close to Gandamatu Macadar, Lanao) and ended close to the town of Ganassi, Lanao. Davao City was among the earliest to be occupied by the invading Japanese forces. They immediately fortified the city as a bastion of the Japanese defense system.

Davao City was subjected by the returning forces of Gen. Douglas MacArthur to constant bombing before the American Liberation Forces landed in Leyte in October 1944. Filipino soldiers and local guerrilla fighters were actively fighting Japanese forces until liberation at the conclusion of the Battle of Mindanao.

Postwar era and Philippine independence Mindanao was peaceful and increasingly progressive in the postwar period, including the 1950s and the mid-1960s. Ethnic tensions were minimal, and there was essentially no presence of secessionists groups in Mindanao.

Marcos era (1965–1986)

Under Ferdinand Marcos's administration, Christian groups began to settle in Mindanao, displacing many locals. The population boom resulted in conflicts as the original owners sought their ancestral land domains.See For an in-depth survey of indigenous peoples and forced land seizures in the Philippines, see