Rulers of Bahrain in the Rashidi era and their most important works (11-40h / 632-660m)

El Bahrain district  in the Islamic history is the area  extending over the western coast of the Arabian Gulf , from El Basra in the north, to Amman in the south. And it's area full of cities and population  since long time , and two of its most famous cities are , HAJR and Al Qatif .
Darin island and Owal island both are its most important populated islands.
Since  long time , this district has always been  well known  for abundance of water , farming palms and producing  dates.
This district had an important role at the rightly guided Caliphs  age,
( from 11-40 A.H / 623-660 A.D ).
This district represented an important  state  of the Islamic  Country states in that period of time.
lots of governors who had been alternating its lead , had had some important actions in the Islamic history , one of the most famous governors at that  time , wally '' AL-Ala ben Al-Hadramy '' who was sent by  the rightly guided Caliph '' Abo Bakr El-Sediq '' to suppress the apostates revolutions in  which he made a success. Another one is wally ''Othman ben El-Aas'' who was sent by the rightly guided Caliph '' Omar Ben El-Khattab '' to invade  Persia through ships starting from el Bahrain  (in 11 A.H -623 A.D) and he went through successfully and opened '' Toug'' city and others.
Another governor is wally '' Abdallah Ben Amer '' who had the lead on both districts , El Bahrain and El Basra who needed the help of El Bahrain forces to open some of the famous persian cities as Khorasan and Karman cities and others.

And the last governor was ''Obaido-allah ben El-Abbas '' who had the lead on both districts , El Bahrain and El Yaman at the time of the rightly guided Caliph '' Ali ben Abi-Taleb ''  who remained governing it untill the death of caliph ali ibn abi talib.