▁the ▁position ▁of ▁the ▁myth ical ▁cities , ▁even ▁for ▁other ▁cent ers ▁within ▁the ▁Neb rod i ▁Mountain ▁region ▁( for ▁example ▁for ▁Dem en na ). ▁ ▁The ▁impro b ability ▁of ▁the ▁identification ▁with ▁Kr ast os ▁and ▁the ▁controvers ial ▁local ization ▁of ▁Dem en na , ▁does ▁not ▁exclude ▁that ▁the ▁actual ▁habit ation ▁was ▁born ▁by ▁the ▁progress ive ▁abandon ment ▁of ▁the ▁settlement ▁located ▁more ▁towards ▁the ▁mountain ▁which ▁is ▁a ▁common ▁phenomen on ▁in ▁Ap enn ine ▁regions . ▁ ▁To ▁this ▁conclusion ▁could ▁be ▁brought ▁for ▁example ▁the ▁remains ▁of ▁human ▁settlement ▁present ▁until ▁a ▁few ▁years , ▁even ▁at ▁C ras to . ▁ ▁The ▁Middle ▁A ges ▁ ▁The ▁settlement ▁probably ▁took ▁the ▁Arab ▁name ▁of ▁Ak aret ▁( mean ing ▁for tr ess ) ▁during ▁the ▁Islam ic ▁dom ination ▁in ▁Sic ily . ▁ ▁It ▁does ▁not ▁seem ▁impro b able ▁that ▁the ▁Arab s ▁after ▁the ▁difficult ▁con quest ▁of ▁this ▁area ▁of ▁the ▁Neb rod i ▁( one ▁of ▁the ▁last ▁con quest s , ▁after ▁almost ▁a ▁century ▁after ▁their ▁landing ▁on ▁the ▁island ) ▁had ▁called ▁for ▁a ▁network ▁of ▁fort ifications ▁for ▁control ▁of ▁the ▁territory . ▁ ▁Nevertheless , ▁the ▁first ▁real ▁historic ▁reference ▁of ▁the ▁existence ▁of ▁Alc ara ▁is ▁from ▁a ▁document ▁from ▁ 1 0 9 6 , ▁a ▁certificate ▁from ▁Count ▁Roger , ▁written ▁in ▁Greek , ▁which ▁indicated ▁Alc ara ▁as ▁a ▁possession ▁of ▁the ▁bishop ▁of ▁Mess ina