🇲🇵 Northern Mariana Islands

The Marianas were first settled around 1500 to 1400 BC by voyagers from the Philippines, the earliest and longest of the Austronesian ocean-crossing migrations. Archaeological evidence suggests Tinian may have been the first Pacific island settled. This founding population became the ancestors of the Chamorro people.

A third migration, likely from the Philippines or eastern Indonesia, arrived by 900 AD. The ancient inhabitants raised colonnades of megalithic latte stones on which they built their houses.

Magellan, sailing under the Spanish flag, reached Guam in 1521 as the first European in the Marianas and claimed the islands for Spain. A cultural clash over a boat taken by Chamorros led to fighting before he departed after three days. Spain thereafter regarded the archipelago as annexed.

Spain formally made the islands part of its East Indies possessions in 1565, embedding them in the empire's Pacific administration. Guam became an important stopover for the Manila galleon trade between the Philippines and Mexico.

During the seventeenth century Spanish authorities moved the Chamorro population of the northern islands to Guam to encourage assimilation and Roman Catholic conversion. Between 90 and 95 per cent of the native population died of introduced European diseases or married non-Chamorro settlers. Filipino and Carolinian settlers were later brought in to repopulate the islands.

The Jesuit missionary named the islands after his patroness, the Spanish regent Mariana of Austria, in 1668. The name has endured for the archipelago ever since, marking the arrival of sustained Spanish missionary presence.

In 1720 the Spanish transferred the surviving inhabitants of the northern islands to Guam. By 1741 only about 5,000 Chamorros remained across the archipelago, a demographic collapse from pre-contact levels.

A royal palace was constructed on Guam in 1734 as the seat of the Spanish governor of the Marianas. Largely destroyed in the Second World War, parts of it survive.

During the nineteenth century large numbers of Carolinians, who call themselves Refaluwasch, settled in the Northern Marianas. Spanish authorities permitted this while suppressing the Chamorro majority through land alienation and forced relocation. The Carolinian language and traditions persist and Carolinian is now an official language of the commonwealth.

After defeat in the Spanish–American War of 1898 Spain ceded Guam to the United States and sold the remaining Marianas and the Carolines to Germany in 1899. The United States declined the rest of the group, permanently splitting Guam from the Northern Marianas. Germany administered the islands as part of German New Guinea.

Germany opened an administrative office on Saipan under head administrator Georg Fritz and established a public school system, a homesteading programme, roads and vocational training. Pagan and Alamagan were leased to Pagan Gesellschaft for copra, though typhoons hampered output, and eight islands were leased to feather hunters. Development overall remained limited.

Japan declared war on Germany early in the First World War and invaded the Northern Marianas. In 1919 the League of Nations placed all former German Pacific islands north of the Equator under Japanese mandate, and Japan governed the Northern Marianas as part of the South Seas Mandate. This began nearly three decades of Japanese rule.

Under the Japanese mandate sugar production dominated the economy, with roughly 98 per cent of Tinian planted with sugarcane. Garapan on Saipan was developed as a regional capital and large numbers of Japanese, Korean, Okinawan and Taiwanese migrants arrived.

The December 1939 census put the South Seas Mandate population at 129,104, of whom 77,257 were Japanese subjects. On Saipan 29,348 Japanese settlers lived alongside 3,926 Chamorro and Caroline Islanders, and Tinian held 15,700 Japanese settlers against 22 Chamorro. The islands had been demographically transformed.

Japan built military installations in the islands during the 1930s and on 8 December 1941, hours after Pearl Harbor, launched an invasion of American Guam from the Marianas. Northern Marianas Chamorros were brought to Guam to assist the occupation administration. The resulting resentment during the 31-month occupation later drove Guam's rejection of reunification.

American forces landed on 15 June 1944 and fighting ended on 9 July; fewer than 1,000 of 30,000 Japanese defenders survived. Many civilians died of disease, starvation and enemy fire, and about 1,000 killed themselves by jumping from cliffs. The battle ended Japanese rule and brought the islands under American control.

American troops retook Guam on 21 July 1944 and landed on Tinian on 24 July. A year later Tinian was the takeoff point for the Enola Gay, the aircraft that dropped the atomic bomb on Hiroshima, making the island central to the war's end.

A large group of Japanese holdouts gave themselves up on Saipan on 1 December 1945, while about thirty remained at large on Anatahan until 1951. Their story was later dramatised in the film The Saga of Anatahan.

Rota was bypassed by the American island-hopping strategy because of its military insignificance and remained in Japanese hands until the surrender in August 1945. It was therefore isolated rather than fought over.

Under UN Security Council Resolution 21 the Northern Marianas became part of the American-administered UN Trust Territory of the Pacific Islands in 1947. The arrangement assigned defence and foreign affairs to the United States as trustee. Repatriated Japanese nationals left and Marianas islanders returned home.

Referendums held in 1958, 1961, 1963 and 1969 each produced majorities in the Northern Marianas for integration with Guam. Union never occurred because Guam's own electorate rejected it in a 1969 referendum, largely because of wartime resentments. The islands then pursued a separate status.

During the 1960s and 1970s thousands of beef cattle, dairy cows and hogs were raised and crops such as pineapple grown. Production became an important food source for the wider Marianas region.

In the 1970s the islanders decided not to seek independence but instead to forge closer ties with the United States, and negotiations with the US opened in 1972. The aim was a covenant creating a commonwealth in political union with the United States rather than integration with Guam or continued trusteeship.

In the 1975 status referendum nearly 80 per cent voted to establish a commonwealth in political union with the United States. The result settled the islands' long-term political direction.

A covenant to establish a Commonwealth of the Northern Mariana Islands in political union with the United States was approved in 1975 and enacted by Congress as Public Law 94-241, codified and coming into force on 24 March 1976. It provided that federal minimum wage and immigration laws would not apply unless Congress later extended them.

A 1977 referendum endorsed the commonwealth constitution with more than 93 per cent support. The new government took office in January 1978 and the constitution came partly into effect on 9 January 1978.

Congress established the federal district court for the commonwealth by act in 1977, and it began operations in January 1978. It gave the islands a federal judicial forum alongside the new commonwealth institutions.

Apatang succeeded to the governorship on 23 July 2025 after Palacios, who had served since January 2023, died in office. The transition tested the commonwealth's constitutional succession arrangements.

The WikiLeaks founder entered his plea in the federal court in Saipan in June 2024, resolving his US case. The choice of venue put the commonwealth's court briefly at the centre of an international legal matter.

Arrivals rose to over 194,600 in fiscal 2023 from roughly 5,370 in fiscal 2021 and 69,530 in fiscal 2022, driven by returning South Koreans. The market remained about half its 2019 size, prompting suggestions the CNMI reposition itself as a higher-end destination.

The 2020 census showed a sharp decline from the 2000 peak of about 80,000, with only seven residents in the Northern Islands Municipality, whose mayor's office sits in exile on Saipan. The population had been around 7,000 in 1950 and 36,000 at the grant of citizenship in 1986.

Yutu caused widespread damage in October 2018, with FEMA personnel pre-deployed to Tinian and Saipan. President Donald Trump declared an emergency for the Northern Islands on 24 October 2018.

In 2018 eighteen people sailed from Saipan aboard MV Super Emerald to resettle the northern islands their families had come from. The mayor's office coordinated clean water supply and radio contact, but the 2020 census recorded only seven residents on the two islands.

In 2013 researchers argued that the first people to reach the Marianas had completed what was then the longest uninterrupted ocean voyage undertaken by humans. The finding reframed the islands' place in the history of Pacific navigation.

In August 2012 Fitial was held responsible for withholding pension and school funds, non-payment of utilities, cutting hospital funding, interfering with a subpoena to his attorney general and signing a sole-source $190 million power contract. The episode marked a major governance crisis in the commonwealth.

Anticipating a loss of funding by 2014, the retirement fund filed for bankruptcy protection in April 2012 with $268.4 million in assets against $911 million in liabilities. The collapse exposed chronic underfunding of the defined-benefit plan by the government.

A 2012 report highlighted that CNMI broadband cost five times Guam's rates, with the price per megabit rising for higher packages because of limited bandwidth. Federal funding for broadband improvement was allocated to the territory in 2023.

Following reports of abusive treatment of immigrant workers, the CNRA amended the Covenant so that US immigration laws applied to the CNMI from 28 November 2009, superseding all commonwealth admission and removal provisions. Transition ended the locally controlled system that had drawn thousands of foreign contract workers.

The Consolidated Natural Resources Act, approved on 8 May 2008, established a non-voting delegate for the commonwealth. Democrat Gregorio Sablan was elected in November 2008 and took office in the 111th Congress in 2009, giving the islands a voice in committees and floor debate for the first time.

Legislation signed on 25 May 2007 superseded local wage control, with the first rise to $3.55 effective 25 July 2007 and yearly increments thereafter. An Obama-signed law in December 2009 shifted the annual increase from May to September. The wage reached the federal $7.25 level in 2018, achieving parity announced for 2015 under the schedule.

On 6 April 2005 a major explosion sent a large black cloud drifting south over Saipan and Tinian. Further eruptive activity followed in 2007–08.

The withdrawal of Japan Airlines flights in 2005 cut a key source market and tourism declined. The industry later rebuilt around Chinese and South Korean visitors.

The lifting of restrictions on Chinese imports to the United States in 2005 removed the commonwealth's advantage, and scheduled wage rises added pressure. Factory closures followed and the last garment plants shut by February 2009, ending an industry that had employed some 15,000 Chinese migrant workers at its peak.

Anatahan began erupting from its east crater on 10 May 2003, forming a new crater inside the eastern caldera and sending an ash plume 12 km high. The ash impaired air traffic to Saipan and Guam, a direct threat to the tourism economy.

A new section of the Commonwealth Code created a Film, Video and Media Office within the Marianas Visitors Authority in 2002. Its purpose was to attract foreign productions and build a local film industry, contributing to a small documentary cinema in the twenty-first century.

One of the strongest tourism years on record saw more than 760,000 arrivals in the islands. Tourism has remained the mainstay of the economy in the decades since.

Local control of wages under the Covenant allowed a minimum of $3.05 per hour for a decade, alongside weaker worker protections. Low production costs underpinned the garment industry but attracted criticism over labour conditions.

On 22 December 1990 the Trusteeship Council ended the TTPI as it applied to the CNMI and five other districts, acknowledged the same day in Security Council Resolution 683. The islands ceased to be listed by the United Nations as a non-self-governing territory.

Earthquake swarms and active fumaroles in April 1990 prompted evacuation of Anatahan's western coast, though no eruption followed. A further swarm occurred in May 1992.

The typhoon wrecked a fifth of houses on Saipan, stripped trees, felled thousands of coconut palms and blocked roads. Electricity and public water supply were out for weeks, exposing the new commonwealth's infrastructure fragility.

Presidential Proclamation 5564 completed implementation of the Covenant on 3 November 1986, and the Northern Mariana Islands came under United States sovereignty on 4 November 1986, when the constitution became fully effective and islanders became US citizens. The territory then had a population of about 36,000. Children born there acquire citizenship at birth by jus soli.

The commission was established in 1982 to implement policies supporting the Chamorro and Carolinian languages and cultures. Both languages, alongside English, are official in the commonwealth.

Eruptions in May 1981 led to the evacuation of Pagan's residents. Continuing volcanic activity has kept most from returning, leaving the island largely uninhabited and reachable only by a 200-mile boat trip.

A new government and constitution took effect in 1978, marked annually as Commonwealth Day on 8 January.