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 2 dynasties (2 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.