The so-called 'Nestorian' Church (officially known as the Apostolic Assyrian Church of the East, with its See in Baghdad) was one of the most significant Christian communities to develop east of the Roman Empire.
In its heyday the Church had 8 million adherents and stretched from the Mediterranean to China.
Christoph Baumer is one of the very few Westerners to have visited many of the most important Assyrian sites and has written the only comprehensive history of the Church, which now fights .
I. B. Tauris & Company The church of the east: an illustrated history of assyrian christianity, hardcover/christoph baumer
