Abu Bakr Muhammad ibn Jafar Narshakhi (or Narshaki) (ca.
899–959), a Sogdian[1] scholar from the village of Narshak in the Bukhara oasis is the first known historian in Central Asia.
Through Da'i missionaries engaged in the da'wah the Isma'ili sect of Shi'ism had spread and was regarded as a threat by the Sunni.
Nuh purged the da'is and killed Isma'ili converts in an attempt to undo their encroaching influence, but the situation in the court remained tense.
[5] In 1128 or 1129, Abu Nasr Ahmad al-Qubavi translated Narshakhi's original Arabic text into Persian, with abridgments and additional content to extend the history to 975.