Book excerpt: The book contains the first annotated English translation of the Correct Explanation of the Tang “Stele Eulogy on the Luminous Teaching” (1644) by the Jesuit Manuel Dias Jr. and other late Ming Chinese Christian sources interpreting the “venerable ancestor” of the Jesuit mission, namely, the mission of the Church of the East in Tang China. Based on this documentation, the book reconstructs the process of “appropriation” by Jesuit missionaries and their Chinese converts of ancient traces of Christianity that were discovered in China in the first half of the seventeenth century, such as the Xi’an stele (781) and other Christian relics