the ummayad and the abbassid states were the ruler during that time and geber was an arab figure during that time observe that we aren't prejudice he was a persian figure too but removing ummay the state the empire the ruler from the phrase and keeping persia who wasn't a state and had no power during that time is completely nonsense i did write only umay but he reverted it i did write arab empire and again he reverted it since geber lived during dynasties states i wrote both of them the umayyad and the abbasid states with mercifully keeping the persia name in the phrase he was born in iran after all