dar-ul-Islam fell over the world between Spain and Sindh, accounts about Christians of India came from Christian travellers, whether as merchants or as monks, who came from lands within Western Christendom. Just as the ecclesiastical offices representing the patriarchies of Antioch and Babylon no longer resided in the cities of their founding, records about their bishoprics in India also disappeared and, for the most part, have yet to surface. One main reason for the curtain of ignorance that descended