▁the ▁n ort he astern - most ▁island ▁of ▁Ad du ▁City , ▁making ▁it ▁the ▁closest ▁island ▁to ▁F uv ah mul ah , ▁which ▁is ▁located ▁about ▁ 4 0   km ▁to ▁the ▁n ortheast . ▁The ▁closest ▁inhab ited ▁islands ▁to ▁the ▁island , ▁H ith ad ho o , ▁Mar ad ho o , ▁M ard ho o - F ey d ho o ▁and ▁F ey d ho o ▁( main land ▁Ad du ▁City ) ▁are ▁located ▁no ▁more ▁than ▁ 1 5 ▁kilom eters ▁away , ▁about ▁ 2 0 ▁minutes ▁by ▁speed bo at . ▁ ▁History ▁ ▁The ▁original ▁sett lers ▁were ▁D h ive hi ▁people ▁of ▁A ry an ▁origin . ▁An ▁Arab ▁trav eller ▁named ▁Y o os uf ▁Na ib ▁introduced ▁Islam ▁to ▁the ▁island ▁many ▁years ▁before ▁the ▁rest ▁of ▁the ▁M ald ives ▁converted ▁to ▁Islam , ▁and ▁built ▁the ▁country ' s ▁first ▁mos que . ▁The ▁island ▁has ▁since ▁been ▁known ▁as ▁a ▁centre ▁of ▁learning ▁and ▁Islam ic ▁religious ▁education . ▁ ▁The ▁ 9 0 0 ▁year ▁old ▁K ō ga ṇ ṇ u ▁C emetery ▁in ▁Me ed ho o ▁is ▁the ▁oldest ▁c emetery ▁in ▁the ▁M ald ives . ▁The ▁largest ▁tomb stone ▁in ▁the ▁country ▁is ▁also ▁found ▁in ▁this ▁c emetery . ▁It ▁is ▁believed ▁that ▁this ▁tomb stone ▁dates ▁back ▁to ▁the ▁ 1 8 th ▁century ▁and ▁belongs ▁to ▁a ▁royal ▁of ▁the ▁M ald ives