One must also take note, that Arabs that used what minimal books available - transcribed those over to Arabs - took credit - and destroyed the originals. Even if Arabs did add on the established sciences and mathematics - they did so due to non-Arab’s before them - or the slaves they took that taught and instructed their new masters in such endeavors.
It’s amazing that the Arab Enlightenment ended after the conquered slaves all died out and those Arabs that were educated by Greeks and others - soon died - the Moslem Enlightenment was over! Says alot about how Moslems poison anything good! These are historical facts known ...I learned about it in 6th Grade History - before the socialists came out with re-written versions in 90’s and present day...
You did know that, right?
That's right. Islamic civilization went into decline after their expansion was halted, and the supply of loot and slaves was curtailed. They didn't recover until a new source of unearned wealth came along: oil.