▁The ▁island ers , ▁aware ▁of ▁the ▁owner ▁of ▁a ▁piece , ▁do ▁not ▁necessarily ▁move ▁them ▁when ▁ownership ▁changes . ▁There ▁are ▁five ▁major ▁types : ▁M mb ul , ▁G aw , ▁Ray , ▁Y ar , ▁and ▁R eng , ▁the ▁last ▁being ▁only ▁ ▁in ▁diameter . ▁Their ▁value ▁is ▁based ▁on ▁both ▁size ▁and ▁history , ▁many ▁of ▁them ▁having ▁been ▁brought ▁from ▁other ▁islands , ▁as ▁far ▁as ▁New ▁Guinea , ▁but ▁most ▁coming ▁in ▁ancient ▁times ▁from ▁Pal au . ▁Appro xim ately ▁ 6 , 5 0 0 ▁of ▁them ▁are ▁scattered ▁around ▁the ▁island . ▁ ▁P ohn pe i ▁is ▁home ▁to ▁Nan ▁Mad ol : ▁Cer emon ial ▁Centre ▁of ▁Eastern ▁Mic ron esia , ▁a ▁UN ES CO ▁World ▁Heritage ▁Site , ▁but ▁the ▁site ▁is ▁currently ▁listed ▁as ▁In ▁D anger ▁due ▁to ▁natural ▁causes . ▁The ▁government ▁is ▁working ▁on ▁the ▁conservation ▁of ▁the ▁site . ▁ ▁Liter ature ▁There ▁have ▁been ▁very ▁few ▁published ▁literary ▁writers ▁from ▁the ▁Feder ated ▁States ▁of ▁Mic ron esia . ▁In ▁ 2 0 0 8 , ▁Em el ih ter ▁Ki hl eng ▁became ▁the ▁first ▁ever ▁Mic ron esian ▁to ▁publish ▁a ▁collection ▁of ▁poetry ▁in ▁the ▁English ▁language . ▁ ▁See ▁also ▁▁ ▁Out line ▁of ▁the ▁Feder ated ▁States ▁of ▁Mic ron esia ▁ ▁Index ▁of ▁Feder ated ▁States ▁of ▁Mic ron esia - related ▁articles ▁ ▁References ▁ ▁S ources ▁ ▁External ▁links ▁▁ ▁Government ▁▁ ▁Government