History of Shiite Written Heritage in the Mirror of Fihrists

Since Shiite hadith is found more in books and collections and less in oral narrations it can be said that there is an inseparable link between hadith books and establishment of the early hadith schools, in different regions of the Shiite World. Shiite scholars tried to bring the hadith books written by great traditionists from learning place into their hometown by their permission and license. The writers of this paper try to view the existing biographies in Shaykh Toosi's al-Fihrist and Najashi's Rijal and analyze its chain of documents, then come up with the written heritage of important cities dwelled by the Shiite and finally the process of formation of some great schools such as Qum, Baghdad, and Khorasan is put on view.