Mindanao

Prehistory

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

The Subanon are believed to have established themselves on Mindanao Island during the Neolithic Era, or New Stone Age, the period in the development of human technology beginning around 10,000 BC according to the ASPRO chronology (between 4,500 and 2,000 BC).^[14] The evidence of old stone tools in Zamboanga del Norte may indicate a late Neolithic presence. Ceramic burial jars, both unglazed and glazed, as well as Chinese celadons, have been found in caves, together with shell bracelets, beads, and gold ornaments. 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 long before the latter's contact with Islam.

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 was introduced via Sulawesi and Java, and the 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 the Golden kinnara, Golden Tara, and the Ganesh 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.

The Hindu-Buddhist cultural revolution was strongest in the coastal areas of the island, but were incorporated into local animist beliefs and customs tribes that resided more inland. The Rajahnate of Butuan, a fully Hindu kingdom mentioned in Chinese records as a tributary state in the 10th century AD, was concentrated along the northeastern coast of the island around Butuan.^[15] 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 modern day, albeit highly Islamized from the 17th century on wards.

Sultanates and Islam

The spread of Islam in the Philippines began in the 14th century, mostly by Muslim merchants from the western part of the Malay Archipelago. The first Mosque in the Philippines was built in the mid-14th century in the town of Simunul.^[15] Around the 16th century, Muslim sultanates: Sulu, Lanao and Maguindanao were established from formerly Hindu-Buddhist Rajahnates.

As Islam gained a foothold over most of Mindanao, the natives residing within the Sultanates were either converted into Islam or obligated to pay tribute to their new Muslim rulers. The largest of the Muslim settlements was the Sultanate named after the Maguindanaoans. Maps made during the 17th and 18th centuries suggest that the name Mindanao was used by the natives to refer to the island, by then Islam was well established in Mindanao and had influenced groups on other islands to the north.

Spanish Colonization and Christianity

On February 2, 1543, Ruy Lopez de Villalobos was the first Spaniard to reach Mindanao,^[16] 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, they moved on to colonize Butuan and the surrounding Caraga region in northeast Mindanao and discovered significant Muslim presence on the island. Over time a number of tribes in Mindanao converted to Roman Catholicism and built settlements and forts throughout the coastal regions of the island. These settlements endured despite incurring attacks from neighboring Muslim Sultanates. The most heavily fortified of these settlements, apart from a short period in 1662 when Spain sent soldiers from the city to Manila after receiving a threat of invasion from the Chinese general Koxinga, was Zamboanga City.^[17]

By the late 18th century Spain had geographic dominance over the island, having established settlements and forts in most of Mindanao; including Zamboanga City (Which was then settled by Peruvian soldiers)^[18] and Misamis Occidental to the northwest, Iligan City, Misamis Oriental, Bukidnon, and Camiguin Island to the north, Butuan and 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.^[17]

American Occupation

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.

Philippine Commonwealth

In 1939 the Philippine government encouraged citizens from Luzon and Visayas to migrate to Mindanao. Consisting mostly of Ilocanos, Cebuanos, and Illongos. Filipino settlers streaming into Soccsksargen lead to the displacement of the Blaan and Tboli tribes.

World War II

Davao City was among the earliest to be occupied by the invading Japanese Forces, and they immediately fortified the city as a bastion of the Japanese defense system. It was subjected by the returning forces of Gen. Macarthur to constant bombing, before the American Liberation Forces landed in Leyte in October 1944.

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.^[19] 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.^[20] In the months of April and May 1942, Japanese forces defeated US troops commanded by Gen. William F. Sharp and Gen. Guy O. Fort, in a battle that started at Malabang (a town close to Gandamatu Macadar, Lanao) and ended close to the town of Ganassi, Lanao. Filipino soldiers and local guerrilla fighters were actively fighting Japanese forces until liberation at the conclusion of the Battle of Mindanao.^[21]

Recent conflicts

Violent conflicts in the southwestern regions of Mindanao, that began in the 1960s, led to the 1971 Manili Massacre, Pata Island Massacre, the founding of the Moro National Liberation Front (MNLF), Moro Islamic Liberation Front (MILF), and the formation of the Ilaga.^[22]

Under President Ferdinand Marcos's administration, the government was said to have encouraged Christian settlers in Mindanao, causing many locals to be displaced. It is believed that ancestral land reclamation by their original owners, forcibly taken from them by Luzon and Visayan settlers, is the main source of conflict in the region.

In March 2000 President Estrada declared an "All Out War" against the Moro Islamic Liberation Front (MILF), after the militant group committed a series of terrorist attacks on government buildings, civilians, and foreigners. A number of livelihood intervention projects, from organisations such as USAID and the Emergency Livelihood Assistance Program (ELAP), aided in the reconstruction of areas affected by constant battles on the island.^[23]

In December 2009, President Gloria Macapagal Arroyo officially placed Maguindanao under a state of martial law following the Maguindanao Massacre.

In May 2017, President Rodrigo Duterte declared martial law on the entire island group of Mindanao following the Marawi Siege by the Maute terrorist group. Thousands of civilians were killed by the terrorist group during the siege, and more than 180,000 people were forced to evacuate Marawi City.^[24]

Typhoon Sendong

Tropical storm Sendong (international name, Washi) made landfall on December 15, 2011 in Mindanao. The recorded 24-hour rainfall in Lumbia station of PAGASA reached 180.9 mm causing the overflow of the Cagayan de Oro River. The deadly storm killed 1,268 people with 49 others listed as missing. Most of the casualties were from the cities of Cagayan de Oro and Iligan. Those who survived were rendered homeless, seeking shelter in evacuation centers.^[25]

Upcoming Developments

Some 2,130 government-led infrastructure projects worth P547.9 billion have also been lined up for Mindanao until 2022.

NEDA official said that 68% of that budget will be allotted for the transportation sector, while 16% will go to water resources, and 6% to social infrastructure.

Of this amount, 18 infrastructure projects have been identified as “flagship projects,” five of them have already been approved by President Rodrigo R. Duterte.

The projects include the P35.26-billion Tagum-Davao-Digos Segment of the Mindanao Railway, the P40.57-billion Davao airport, the P14.62-billion Laguindingan airport, the P4.86-billion Panguil Bay Bridge Project, and the P5.44-billion Malitubog-Maridagao Irrigation Project, Phase II.

Projects in the pipeline are the second and third phases of the Mindanao Railway; the Agus-Pulangi plant rehabilitation; the Davao expressway; the Zamboanga Fish Port Complex rehabilitation; the Balo-i Plains Flood Control Project; Asbang Small Reservoir Irrigation Project; the Ambal Simuay Sub-Basin of the Mindanao River Basin Flood Control and River Protection Project; as well as the Road Network Development Project in Conflict-Affected Areas in Mindanao project.^[28]

Mountains

The mountains of Mindanao can be grouped into ten ranges, including both complex structural mountains and volcanoes. The structural mountains on the extreme eastern and western portions of the island show broad exposures of Mesozoic rock, and Ultrabasic rocks at the surface in many places along the east coast. Other parts of the island consist mainly of Cenozoic and Quaternary volcanic or sedimentary rocks.

In the eastern portion of the island, from Bilas Point in Surigao del Norte to Cape San Agustin in Davao Oriental, is a range of complex mountains known in their northern portion as the Diwata Mountains. This range is low and rolling in its central portion. A proposed road connecting Bislig on the east coast with the Agusan River would pass through 16 kilometres (9.9 mi) of broad saddle across the mountains at a maximum elevation of less than 250 metres (820 ft); while the existing east–west road from Lianga, 48 kilometres (30 mi) north of Bislig, reaches a maximum elevation of only 450 metres (1,480 ft). The Diwata Mountains, north of these low points, are considerably higher and more rugged, reaching an elevation of 2,012 metres (6,601 ft) in Mount Hilong-Hilong, 17 miles (27 km) along the eastern portion of Cabadbaran City. The southern portion of this range is broader and even more rugged than the northern section. In Davao Oriental, several peaks rise above 2,600 metres (8,500 ft) and one mountain rises to 2,910 metres (9,550 ft).

Mt. Apo, the highest peak in the Philippines

The east-facing coastal regions of Davao and Surigao del Sur are marked by a series of small coastal lowlands separated from each other by rugged forelands which extend to the water’s edge. Offshore are numerous coral reefs and tiny islets. This remote and forbidding coast is made doubly difficult to access during the months from October to March by the heavy surf driven before the northeast trade winds. A few miles offshore is found the Philippine Deep. This ocean trench, reaching measured depths of 34,696 feet (10,575 m), is the third deepest trench, (after the Mariana Trench and Tonga Trench) on the earth’s surface.

A second north–south mountain range extends from Talisayan in the north, to Tinaca Point in the southernmost point of Mindanao. This mountain range runs along the western borders of the Agusan del Norte, Agusan del Sur, and Davao provinces. This range is mainly structural in origin, but it also contains at least three active volcano peaks. The central and northern portions of this range contain several peaks between 2,000 and 2,600 metres (6,600 and 8,500 ft), and here the belt of mountains is about 30 miles (48 km) across.

West of Davao City stand two inactive volcanoes: Mount Talomo at 2,893 metres (9,491 ft), and Mount Apo at 2,964 metres (9,724 ft). Mount Apo is the highest point in the Philippines. South of Mount Apo, this central mountain belt is somewhat lower than it is to the north, with peaks averaging only 1,100 to 1,800 metres (3,600 to 5,900 ft).

In Western Mindanao, a range of complex structural mountains forms the long, hand-like Zamboanga Peninsula. These mountains, reaching heights of only 1,200 meters (3,900 feet), are not as high as the other structural belts in Mindanao. There are several places in the Zamboanga Mountains where small inter-mountain basins have been created, with some potential for future agricultural development. The northeastern end of this range is marked by the twin peaks of the now extinct volcano, Mount Malindang, that towers over Ozamis City at a height of 2,425 metres (7,956 ft). Mount Dapia is the highest mountain in the Zamboanga Peninsula, reaching a height of 2,617 meters (8,586 feet). Batorampon Point is the highest mountain of the southernmost end of the peninsula, reaching a height of only 1,335 meters (4,380 feet); it is located in the boundary of Zamboanga City.

A series of volcanic mountains is located within the vicinity of Lake Lanao forming a broad arc through the Lanao del Sur, Cotabato and Bukidnon provinces. At least six of the twenty odd peaks in this area are active and several stand in semi-isolation. The Butig Peaks, with their four crater lakes, are easily seen from Cotabato. Mount Ragang, an active volcano cone reaching 2,815 metres (9,236 ft), is the most isolated, while the greatest height is reached by Mount Kitanglad at 2,889 metres (9,478 ft).

Mindanao coast

In South Cotabato, is another range of volcanic mountains, this time paralleling the coast. These mountains have a maximum extent of 110 miles (180 km) from northwest to southeast and measures some 30 miles (48 km) across. One of the well-known mountains here is Mount Parker, whose almost circular crater lake measures a mile and a quarter in diameter and lies 300 metres (980 ft) below its 2,040 metres (6,690 ft) summit. Mount Matutum is a protected area and is considered as one of the major landmarks in the South Cotabato province.

Plateaus

Another important physiographic division of Mindanao is the series of upland plateaus in the Bukidnon and Lanao del Sur provinces. These plateaus are rather extensive and almost surround several volcanoes in this area. The plateaus are made up of basaltic lava flows inter-bedded with volcanic ash and tuff. Near their edges, the plateaus are cut by deep canyons, and at several points waterfalls drop down to the narrow coastal plain. These falls hold considerable promise for development of hydroelectric energy. Indeed, one such site at Maria Cristina Falls has already become a major producer. The rolling plateaus lie at an elevation averaging 700 meters above sea level, and offer relief from the often oppressive heat of the coastal lowlands.

Lakes and waterfalls

Lake Lanao occupies a large portion of one such plateau in Lanao del Sur. This lake is the largest lake in Mindanao and the second largest in the country; it is roughly triangular in shape with an 18-mile-long (29 km) base, having a surface at 780 meters above sea level, and is rimmed on the east, south, and west by a series of peaks reaching 2,300 meters. Marawi City, at the northern tip of the lake, is bisected by the Agus River, that feeds the Maria Cristina Falls.

Another of Mindanao’s waterfall sites is located in Malabang, 15 miles (24 km) south of Lake Lanao. Here the Jose Abad Santos Falls present one of the nation’s scenic wonders at the gateway to a 200-hectare national park development.

The Limunsudan Falls, with an approximate height of 800 ft (240 m), is the highest waterfall in the Philippines; it is located in Iligan City.

Valleys, rivers, and plains

Mindanao contains two large lowland areas in the valleys of the Agusan River in Agusan, and the Rio Grande de Mindanao in Cotabato City.

There is some indication that the Agusan Valley occupies a broad syncline between the central mountains and the east-coast mountains. This valley measures 110 miles (180 km) from south to north and varies from 20 to 30 miles (32 to 48 km) in width. 35 miles (56 km) north of the head of Davao Gulf lies the watershed between the Agusan and the tributaries of the Libuganon River, which flows to the Gulf. The elevation of this divide is well under 200 metres (660 ft), indicating the almost continuous nature of the lowland from the Mindanao Sea on the north to the Davao Gulf.

The Rio Grande de Mindanao and its main tributaries, the Catisan and the Pulangi, form a valley with a maximum length of 120 miles (190 km) and a width which varies from 12 miles (19 km) at the river mouth to about 60 miles (97 km) in central Cotabato. The southern extensions of this Cotabato Valley extend uninterrupted across a 350 metres (1,150 ft) watershed from Illana Bay on the northwest to Sarangani Bay on the southeast.

Other lowlands of a coastal nature are to be found in various parts of Mindanao. Many of these are tiny isolated pockets, along the northwest coast of Zamboanga. In other areas such as the Davao Plain, these coastal lowlands are 16 kilometres (9.9 mi) wide and several times in length.

From Dipolog City eastward along the northern coast of Mindanao approaching Butuan City extends a rolling coastal plain of varying width. In Misamis Occidental, the now dormant Mount Malindang has created a lowland averaging 13 kilometres (8.1 mi) in width. Shallow Panquil Bay divides this province from Lanao del Norte, and is bordered by low-lying, poorly drained lowlands and extensive mangroves. In Misamis Oriental, the plain is narrower and in places whittle into rugged capes that reach the sea. East of Cagayan de Oro, a rugged peninsula extends into the Mindanao Sea.