Nauru was first settled by Micronesians at least 3,000 years ago, and there is evidence of possible
Polynesian influence. Comparatively little is known of Nauruan prehistory, although the island is believed to have had a long period of isolation, which accounts for the distinct language that developed among the inhabitants. There were traditionally twelve clans or tribes on Nauru, which are represented in the twelve-pointed star on the
country's flag. Traditionally,
Nauruans traced their descent
matrilineally. Inhabitants practised
aquaculture: they caught juvenile
milkfish (known as
ibija in
Nauruan),
acclimatised them to freshwater, and raised them in
Buada Lagoon, providing a reliable food source. The other locally grown components of their diet included
coconuts and
pandanus fruit. The name "Nauru" may derive from the Nauruan word '''', which means 'I go to the beach.' In 1798, the
British sea captain
John Fearn, on his trading ship
Hunter (300 tons), became the first Westerner to report sighting Nauru, calling it "Pleasant Island" because of its attractive appearance. From at least 1826, Nauruans had regular contact with Europeans on whaling and trading ships who called for provisions and fresh drinking water. The last
whaler to call during the
Age of Sail visited in 1904. Around this time,
deserters from European ships began to live on the island. The islanders traded food for alcoholic
palm wine and firearms. The firearms were used during the 10-year
Nauruan Civil War that began in 1878. After an
agreement with Great Britain, Germany annexed Nauru in 1888 and incorporated it into the Marshall Islands Protectorate for administrative purposes. The arrival of the
Germans ended the civil war, and kings were established as rulers of the island. King
Auweyida was the most widely known. Christian missionaries from the
Gilbert Islands arrived in 1888. The German settlers called the island "Nawodo" or "Onawero". The Germans ruled Nauru for almost three decades.
Robert Rasch, a German trader who married a 15-year-old Nauruan girl, was the first administrator, appointed in 1890. In 1900,
phosphate was discovered on Nauru by the prospector
Albert Fuller Ellis. In 1914, following the outbreak of World War I, Nauru was captured by Australian troops. In 1919, it was agreed by the
Allied and Associated Powers that
George V of the United Kingdom should be the administering authority under a League of Nations mandate. The Nauru Island Agreement forged in 1919 among the governments of the United Kingdom, Australia, and New Zealand provided for the administration of the island and extraction of the phosphate deposits by an intergovernmental
British Phosphate Commission (BPC). The terms of the
League of Nations mandate were drawn up in 1920. In 1923, the League of Nations gave Australia a trustee mandate over Nauru, with the United Kingdom and New Zealand as co-trustees. On 6 and 7 December 1940, the German auxiliary cruisers
Komet and
Orion sank five supply ships in the vicinity of Nauru.
Komet then shelled Nauru's phosphate mining areas, oil storage depots, and the shiploading cantilever. bombing the Japanese airstrip on Nauru (1943). The Japanese deported 1,200 Nauruans to work as labourers in the
Chuuk Islands, which were also occupied by Japan. Nauru was finally taken back from the Japanese on 13 September 1945, when commander Hisayaki Soeda surrendered the island to the Australian Army and the
Royal Australian Navy. The surrender was accepted by
Brigadier J. R. Stevenson, who represented
Lieutenant General Vernon Sturdee, the commander of the First Australian Army, aboard the warship
HMAS Diamantina. Arrangements were made to repatriate from Chuuk the 745 Nauruans who survived Japanese captivity there. They were returned to Nauru by the BPC ship
Trienza in January 1946. In 1947, a trusteeship was established by the United Nations, with Australia, New Zealand, and the United Kingdom as trustees. The governments of the
Soviet Union and
China made official complaints against Australia at the United Nations over this incident. In 1964, it was proposed to relocate the population of Nauru to
Curtis Island off the coast of
Queensland, Australia. By that time, Nauru had been extensively mined for phosphate by companies from Australia, Britain, and New Zealand, damaging the landscape so much that it was thought the island would be uninhabitable by the 1990s. Rehabilitating the island was seen as financially impossible. In 1962,
Australian Prime Minister Robert Menzies said that the three countries involved in the mining had an obligation to provide a solution for the Nauruan people, and proposed finding a new island for them. In 1963, the Australian Government proposed to acquire all the land on Curtis Island (which was considerably larger than Nauru) and then offer the Nauruans freehold title over the island and that the Nauruans would become
Australian citizens. The cost of resettling the Nauruans on Curtis Island was estimated to be (
A$ in ), which included housing and infrastructure and the establishment of
pastoral,
agricultural, and
fishing industries. However, the Nauruan people did not wish to become Australian citizens and wanted to be given sovereignty over Curtis Island to establish themselves as an independent state; Australia would not agree. The Nauruans chose instead to become a sovereign state operating its own mines on the island of Nauru. In January 1966, Nauru became self-governing, and following a two-year constitutional convention, it became independent on 31 January 1968 under founding president
Hammer DeRoburt. In 1967, the new government of Nauru purchased the assets of the British Phosphate Commissioners, and in June 1970, control passed to the locally owned
Nauru Phosphate Corporation (NPC). In 1989, Nauru took legal action against Australia in the
International Court of Justice over Australia's administration of the island, particularly Australia's failure to remedy the environmental damage caused by phosphate mining.
Certain Phosphate Lands: Nauru v. Australia led to an out-of-court settlement to rehabilitate the mined-out areas of Nauru. In response to the
COVID-19 pandemic, a
state of emergency was declared in Nauru on 17 March 2020. == Geography ==