▁ens lave ▁Muslim s , ▁Christians ▁could ▁not ▁ens lave ▁Christians , ▁and ▁so ▁on . ▁ ▁Christian ▁sla very ▁in ▁Spain ▁During ▁the ▁Al - And alus ▁( also ▁known ▁as ▁Muslim ▁Spain ▁or ▁Islam ic ▁I ber ia ), ▁the ▁Mo ors ▁controlled ▁much ▁of ▁the ▁pen ins ula . ▁They ▁imported ▁white ▁Christian ▁slaves ▁from ▁the ▁ 8 th ▁century ▁until ▁the ▁end ▁of ▁the ▁Re con qu ista ▁in ▁the ▁late ▁ 1 5 th ▁century . ▁The ▁slaves ▁were ▁export ed ▁from ▁the ▁Christian ▁section ▁of ▁Spain , ▁as ▁well ▁as ▁Eastern ▁Europe ▁( Sa q al iba ), ▁spark ing ▁significant ▁reaction ▁from ▁many ▁in ▁Christian ▁Spain ▁and ▁many ▁Christians ▁still ▁living ▁in ▁Muslim ▁Spain . ▁The ▁Muslim s ▁followed ▁the ▁same ▁technique ▁as ▁Rom ans ▁to ▁capture ▁slaves ; ▁seeking ▁cities ▁to ▁al ly ▁with ▁them . ▁So on ▁after , ▁Muslim s ▁were ▁successful , ▁taking ▁ 3 0 , 0 0 0 ▁Christian ▁capt ives ▁from ▁Spain . ▁In ▁the ▁e ighth ▁century ▁sla very ▁last ed ▁longer ▁due ▁to ▁“ fre quent ▁cross - border ▁sk irm ishes , ▁inter sp ers ed ▁between ▁periods ▁of ▁major ▁campaign s .” ▁By ▁the ▁t enth ▁century , ▁By z antine ▁Christians ▁in ▁the ▁eastern ▁Mediter rane an ▁were ▁captured ▁by ▁Muslim s . ▁Many ▁of ▁the ▁ra ids ▁designed ▁by ▁Muslim s ▁were ▁created ▁for ▁the ▁fast ▁capture ▁of ▁prisoners . ▁Therefore , ▁Muslim s ▁restricted ▁control ▁in ▁order ▁to ▁keep ▁capt ives ▁from