The causes of the transmission of the status of the Abbasid Caliphate in its first period 132-232 / 749-847 are important historical phenomena that scholars should be aware of. Hence the importance of this phenomenon, I trace the reasons and motives that motivated this or that successor to move from this center There have been many reasons and motives for political, geographical, economic, social and other - as will be shown by research - and here moved in this research between the mothers of historical sources and references to modern researchers and investigating the causes of this phenomenon.
On the top of these sources were the books of general history, including the book "The History of Yacoubi" by Ahmed bin Ishaq bin Jaafar bin Wahab bin Wafeeh al-Baghdadi (292 AH / 905 CE) and the book "History of the Nations and Kings of the Tabri" by Abu Ja'far Muhammad ibn Jarir (310/922 CE) And the history of Ibn Khaldun (Abd al-Rahman ibn Muhammad al-Hadrami, Tunisia, 808 AH / 1406 AD), and others, as they dealt with their historical narratives transfer centers of the Abbasid Caliphate in the first era, according to the Hijri years, explaining the reasons of this transition and the most important incidents that took place on its territory and the governors and judges and writers who are chosen to represent the policy of the Caliph.
The research was also based on the books of the historical geography and the countries such as the book of the countries of Ibn al-Faqih, Abi Abdullah Ahmad ibn Muhammad al-Hamdani (289 AH / 902 CE), the book of the countries of Yaqoubi, (626 AH / 1229 AD). These important books were exposed to how the Islamic conquest of some cities and their fortification and how they were chosen and made them the first centers of the Abbasid caliphate and preferred to other places.
Some of these sources dealt with the centers of worship in some of these places before they were established as churches, monasteries, etc.
In addition to the adoption of the research on the books of history and translations, including the book (the history of Baghdad) to Ibn al-Khatib, Abu Bakr Ahmad binali al-Baghdadi (d. 463 AH / 1071) and the book (history of Islam and the deaths of celebrities and flags) of the golden, Abu Abdullah Mohammed bin Othman bin Qaimaz (d. 748 AH / 1348) (768 AH / 1367 AD), and others, as it provided us with important translations of some of the Abbasid people in their early era and their influence, including translations related to the successors of the Abbasites, their ministers, their leaders, and so on. .
In addition to the adoption of the research of the books of the task and a valuable resource for references of value in Islamic history, such as my book (the first Abbasid era) and (Islamic systems) of Professor Dr. Abdul Aziz Al-Douri, Katabi (Abbasid first) and (the history of Iraq in the era of the Abbasid Caliphate) Fawzi, and books and references in the planning and the emergence of Islamic cities, such as the book (Planning Arab Islamic cities) Professor Dr. Taher Muzaffar Brigadier, and book (historical factors of the development and development of Arab Islamic cities) to Professor Mustafa Abbas al-Musawi and do not forget the virtue of Professor Dr. (Jawad Ali) Of the tributaries The book (detailed in the history of the Arabs before Islam) was really a large and documented and illuminating the pages of this research. |