
TheFederated States of Micronesia are located on theCaroline Islands in the western Pacific Ocean. The history of the modernFederated States of Micronesia is one of settlement byMicronesians;colonization bySpain,Germany, andJapan;United Nations trusteeship underUnited States-administeredTrust Territory of the Pacific Islands; and gradual independence beginning with the ratification of a sovereignconstitution in 1979.
TheAustronesian ancestors of theMicronesians settled there over 4,000 years ago. A decentralized chieftain-based system eventually evolved into a more centralized economic and religious culture centered onPohnpei.[1] People from theCaroline Islands had regular contact with theChamorro people of theMarianas Islands, as well as rarer voyages into the eastern islands of thePhilippines.[2]
From circa 1500 BC, before the beginning of foreign colonial administration by Western powers, the island ofYap created and maintained a unique set of socio-economic and political relationships with neighbouring islands to its east and southwest in what is known as theYapese Empire.[3] Although small-scale and informal, the Empireper se was formed when what is now known asGagil Municipality through the chief village of Gatchaper, developed and maintained a maritime trade and political network with smaller atolls and island groups between Yap andChuuk, covering over approximately 1,500 kilometres (932.01 miles) of the western Pacific.

Through a relationship known assawey, the Empire demanded tribute known asPitigil Tamol to be given to the paramount chief of Gagil in Gatchaper.[4] These tributes would include bagiiy (lavalava), coconut rope,coconut oil,mats andshells. In return, Gagil would reciprocate with mutual support from the main island in case ofnatural emergencies as well asgoods. These goods from Gagil would include Yapesecanoes,turmeric,flint stone and other Yapese resources.[4] The relationship also asked those with navigational experience and expertise for service along with Yapese navigators. This relationship may have helped the Yapese sail toPalau for quarrying theRai stones, the stone currency disks carved from crystalline calcite still used today in cultural transactions.

Although this unique relationship with Gagil and the outer islands may appear exploitative, researchers such as Lessa (1950, pp. 43, 52; 1986, p. 35) and Lingenfelter (p. 147) maintain that the relationship was mostly mutual and, in most cases, was more beneficial to the Carolinians than to the Yapese. Lessa (1950, p. 70-71) had also suggested that the so-called empire was formed out ofconquest and "blackmail" throughsorcery andeconomics.
Other places mentioned in Pacific anthropological-historical literature that were quite similar to the Yapese Empire was theTongan Empire, also known as Tu'i Tonga, which is now present-dayKingdom of Tonga.
Yapese traditional society before foreign colonial administrations was divided into multiple villages and municipalities and is highlyfeudal in nature. Power was not allocated to one single authority that controlled Yap but was decentralised and allocated to at least ten municipalities. A defining feature of Yapese society was its unique and complexsocial caste system, which is still in use today. Each of the current one-hundred twenty-nine (129)villages of Yap are organised into single units based on the class system depicted below.[5]
| HIGH CLASSES: TABUGUL ("PURE") | |
| CLASSES/CASTES | |
| Bulche'/ 'Ulun | Chiefs |
| Methibaan/Tethibaan | Nobles |
| Daworchig | Commoners |

| LOW CLASSES: TA'AY ("IMPURE") | |
| CLASSES/CASTES | |
| Milingaay ni 'Arow | Servants |
| Milingaay | Serfs |
| Yagug/Milignaay ni Kaan | Serfs |
Although each village has its own class ranking within themunicipality based on the number ofmilitary victories, each village also has its own internal set of social classes exclusive to that group. All low classes and low-class villages were under the authority of villages that were ranked higher since the latter had considerable power and voice (lungun).[5] An example of a high-ranking village is the aforementioned Gatchaper, which is rankedBulche' or'UIun. Because villages and municipalities were continuously at war amongst one another, village and personal social ranks fluctuated based on military outcomes.
However, in the 20th century, during the German occupation of Yap, the German administration pacified the island and enforced strict prohibition against violent conflicts. This policy resulted in a permanent freeze of all social caste rankings. Today, there are three villages with the high-ranking chief villages: Teb Village inTamil Municipality, Ngolog Village inRull Municipality and Gatchaper inGagil Municipality.
These chief villages and their municipalities are referred to in Yapese as "fare dalip e nguchol", which means "the three cooking stones". This similarity was created to describe the relationship between these three villages and municipalities with the other remaining seven. The stones, ornguchol, represent Tamil, Gagil and Rull while the pot represents the island of Yap. The saying goes that when one stone, or one municipality or village, fell, all of Yap and its value would fall as well.
OnPohnpei, pre-colonial history is divided into three eras:Mwehin Kawa orMwehin Aramas (Period of Building, or Period of Peopling, before c. 1100);Mwehin Sau Deleur (Period of theLord of Deleur, c. 1100[6] to c. 1628);[note 1] andMwehinNahnmwarki (Period of the Nahnmwarki, c. 1628 to c. 1885).[7][10] Pohnpeian legend recounts that theSaudeleur rulers, the first to bring government to Pohnpei, were of foreign origin. The Saudeleur centralized form of absolute rule is characterized in Pohnpeian legend as becoming increasingly oppressive over several generations. Arbitrary and onerous demands, as well as a reputation for offending Pohnpeian deities, sowed resentment amongPohnpeians. The Saudeleur Dynasty ended with the invasion ofIsokelekel, another semi-mythical foreigner, who replaced the Saudeleur rule with the more decentralizednahnmwarki system in existence today.[12][13][14] Isokelekel is regarded as the creator of the modern Pohnpeiannahnmwarki social system and the father of the Pohnpeian people.[12][15]
Nan Madol offshore ofTemwen Island nearPohnpei, consists of a series of smallartificial islands linked by a network of canals, and is often called theVenice of the Pacific. It is located near the island ofPohnpei and was the ceremonial and political seat of theSaudeleur Dynasty that united Pohnpei's estimated 25,000 people until its centralized system collapsed amid the invasion ofIsokelekel.[14] Isokelekel and his descendants initially occupied the stone city, but later abandoned it.[10]

European explorers - first thePortuguese in search of theSpice Islands (Indonesia) and then theSpanish - reached the Carolines in the 16th century, with the Spanish establishing sovereignty.[1]
Spain sold the islands toGermany in 1899 under the terms of theGerman–Spanish Treaty of that year.[1] Germany placed them under the jurisdiction ofGerman New Guinea. German efforts to reorganize the traditional social hierarchy and recruit forced labor for construction resulted in arebellion by inhabitants of Sokehs Municipality in 1910.
Yap was a majorGerman naval communications center before theFirst World War and an important international hub for cable telegraphy. It was occupied by Japanese troops in September, 1914, and passed to the Japanese Empire under the Versailles Treaty in 1919 as a mandated territory underLeague of Nations supervision. US commercial rights on the island were secured by a special US-Japanese treaty to that effect, concluded on February 11, 1922.[16]

DuringWorld War I, many of the German possessions in the Pacific were conquered byJapan, who fought on the side of theAllies of World War I and was active in theAsian and Pacific theatre of World War I.
TheEmpire of Japan administered the islands from 1920 under theSouth Seas Mandate granted by theLeague of Nations. During this period, the Japanese population grew to over 100,000 throughout Micronesia, while the indigenous population was about 40,000. Sugar cane, mining, fishing and tropical agriculture became the major industries.[17]
InWorld War II,Japanese-held Yap was one of the islands bypassed in the U.S. "leapfrogging" strategy, although it was regularly bombed by U.S. ships and aircraft, and Yap-based Japanese bombers did some damage in return. The Japanesegarrison comprised 4,423Imperial Japanese Army men under the command of Colonel Daihachi Itoh and 1,494Imperial Japanese Navy men.[18] A significant portion of theJapanese fleet was based inTruk Lagoon. In February 1944,Operation Hailstone, one of the most important naval battles of the war, took place at Truk, in which many Japanese support vessels and aircraft were destroyed.
World War II brought an abrupt end to the relative prosperity experienced during Japanese civil administration.[19]

Flag of the Trust Territory of the Pacific Islands; was used in the FSM 1965 to 1978.TheUnited Nations created theTrust Territory of the Pacific Islands (TTPI) in 1947.Pohnpei (then includingKusaie),Truk,Yap,Palau, theMarshall Islands and theNorthern Mariana Islands, together constituted the TTPI. The United States accepted the role of Trustee of this, the onlyUnited NationsTrusteeship to be designated as a "Security Trusteeship", whose ultimate disposition was to be determined by the UN Security Council.[1] As Trustee the US was to "promote the economic advancement and self-sufficiency of the inhabitants."

On May 10, 1979, four of the Trust Territory districts ratified theConstitution of the Federated States of Micronesia. The neighboring trust districts ofPalau, the Marshall Islands, and the Northern Mariana Islands chose not to participate. The HonorableTosiwo Nakayama, the former President of the Congress of Micronesia, became the first President of the FSM and formed his Cabinet. The FSM signed aCompact of Free Association with the U.S., which entered into force on November 3, 1986, marking Micronesia's emergence from trusteeship to independence. Under the Compact, the U.S. has full authority and responsibility for the defense of the FSM. This security relationship can be changed or terminated by mutual agreement. The Compact provides U.S. grant funds and federal program assistance to the FSM. Amended financial assistance provisions came on-line in FY 2004. The basic relationship of free association continues indefinitely.
Trusteeship of the islands ended underUnited Nations Security Council Resolution 683, passed on December 22, 1990. The Compact was renewed in 2004.[20]