Lōmāfānu are ancient royal edicts written on copper plates. Lōmāfānu edicts were etched on long copper plates held together by a ring of the same metal. The lōmāfānu were written in the curly Evēla form of the Divehi akuru or old Maldive alphabet and they are very important documents in the History of the Maldives. The oldest lōmāfānu that have hitherto been found and preserved are from Malé, the royal capital, and from the islands of Isdū and Dambidū in Haddhunmathi Atoll, where there were large Buddhist monasteries. These copperplates were issued at the end of the twelfth century AD. These (lōmāfānu), make it clear that the general conversion from Buddhism to Islam was ordered by the king. Thanks to the lōmāfānu it is also known that the monasteries in Haddummati Atoll (Satu Duvu) were of great importance in the ancient Buddhist Kingdom of the Maldives.
According to the Isdū Lōmāfānu, monks from monasteries of the southern atoll of Haddhunmathi were brought to Malé and beheaded.