▁to ▁remain ▁stable . ▁Mission aries ▁and ▁war riors ▁spread ▁the ▁religion ▁from ▁Arab ia ▁to ▁North ▁and ▁Sud an ic ▁Africa , ▁South ▁and ▁S out heast ▁Asia , ▁and ▁the ▁Mes op ot am ia ▁area . ▁This ▁created ▁a ▁mix ▁of ▁cult ures , ▁especially ▁in ▁Africa , ▁and ▁the ▁ma w ali ▁dem ographic . ▁Although ▁the ▁ma w ali ▁would ▁experience ▁disc rim ination ▁from ▁the ▁Um ay y ad , ▁they ▁would ▁gain ▁w ides p read ▁accept ance ▁from ▁the ▁Abb as ids ▁and ▁it ▁was ▁because ▁of ▁this ▁that ▁allowed ▁for ▁mass ▁convers ions ▁in ▁foreign ▁areas . ▁" Pe ople ▁of ▁the ▁book " ▁or ▁d him mi ▁were ▁always ▁treated ▁well ; ▁these ▁people ▁included ▁Christians , ▁Jews , ▁H ind us , ▁and ▁Z oro ast ri ans . ▁However , ▁the ▁cr us ades ▁started ▁a ▁new ▁thinking ▁in ▁the ▁Islam ic ▁emp ires , ▁that ▁non - I sl am ic ▁ideas ▁were ▁imm oral ▁or ▁inferior ; ▁this ▁was ▁primarily ▁perpet r ated ▁by ▁the ▁ul ama ▁( ع ل م ا ء ) ▁sch ol ars . ▁ ▁Arab ian ▁culture ▁took ▁off ▁during ▁the ▁early ▁Abb as id ▁age , ▁despite ▁the ▁pre val ent ▁political ▁issues . ▁Muslim s ▁saved ▁and ▁spread ▁Greek ▁adv ances ▁in ▁medicine , ▁algebra , ▁geometry , ▁astronom y , ▁an atom y , ▁and ▁eth ics ▁that ▁would ▁later ▁finds ▁it ▁way ▁back ▁to ▁Western ▁Europe . ▁The ▁works ▁of