later imperial decrees calling for religious toleration likely had no effect for the Christians, who were likely severely marginalized or extinct by then. The province of Beth Sinaye is last mentioned in 987 by the Arab writer Ibn al-Nadim, who met a Church of the East monk who had recently returned from China, who informed him that 'Christianity was just extinct in China; the native Christians had perished in one way or another; the church which they had used had been destroyed; and there was only one Christian left in the land'. The collapse of the Church of the East in China coincided with the fall of the Tang dynasty, which led to a tumultuous era (the Five Dynasties and Ten Kingdoms period). The complete extinction of Christianity after the Tang dynasty can be traced to the fact that the religion was evidently foreign and dependent on imperial support. Majority of Christians in Tang China were foreigners from Persia or Central Asia. Considering the lack of native Chinese converts, the religion was a foreign faith practiced by foreigners. The most decisive factor to the collapse of the Church of the East was the church's strong reliance on Tang imperial protection and patronage. After the fall of the Tang dynasty, what was left of the Christian church quickly vanished without political support. Literature Dozens of Jingjiao texts were translated from Syriac into Chinese. Only a few have survived. These are generally referred to as the Chinese Jingjiao Documents. One of the surviving texts, the Zunjing or Book of Praise (), lists about 35 books that had been translated into Chinese. Among these books are some translations of the Scriptures, including the Pentateuch () - Genesis is known as , Psalms (), the Gospels (), Acts of the Apostles () and a collection of the Pauline epistles (). These translations of the Scriptures have not survived. However, three non-scriptural Christian books listed in the Zunjing are among the Jingjiao manuscripts that were discovered in the early 20th century: the Sutra on the Origin of Origins, the Sutra of Ultimate and Mysterious Happiness, and the Hymn of Perfection of the Three Majesties (also called Gloria in Excelsis Deo). Two additional Jingjiao manuscripts not listed in the Zunjing have also been discovered: Sutra of Hearing the Messiah and Treatise on the One God. Yuan dynasty The Mongols called Church of the East Christians (or