1) Believing in the Koran 2) Calendar originating in 622 3) Kind of calendar 4) Koran-based 5) Like emirates 6) Like mullahs 7) Like some legal systems 8) Like the koran 9) Monotheism 10) Moslem 11) Muslim 12) Of a certain creed 13) Of a religion 14) Of the Moslem faith 15) Of the Moslem lands 16) Of the muslim faith Found on https://www.crosswordclues.com/clue/islamic