استيطان القبائل العربية في منطقة الجزيرة الفراتية في صدر الاسلام

The research deals with the settlements of the Arab tribes in the Euphrates Island in the pre – Islamic period then the period which followed the Islamic conquest of the Euphrates Island. The research explains the name, borders, importance of the Island, and the beginnings of the Arab tribes settlements in the pre – Islamic period. The research discusses the stages of the Island conquest the influence of that on the distributions and availability of tribes and finally their settlements after conquest and the migration of many tribes during the time of the Muawiya Bin Abi Sufyan specially the Qais tribes which settled in the high banks of the Euphrates in addition to the tribes who preceeded it in settlements like Bakr and Taghlub and the other.