 Among these manuscripts were texts of Christian and Muslim spirituality written in Aramaic, Syriac, Arabic and Armenian.In addition, since 1990, Najeeb Michaeel has contributed to the safeguarding of 8,000 more manuscripts and 35,000 documents from the Church of the East.The synod of chaldean Catholic bishops elected Najeeb Moussa Michael archbishop of Mosul, at de facto post vacancy since the arrival of the Islamic state in 2014.