靖康之变
Father Joseph Brucker, a Roman Catholic researcher of the early 20th century, notes that Ricci's account of Chinese Jews indicates that there were only in the range of ten or twelve Jewish families in Kaifeng in the late 16th to early 17th centuries, and that they had reportedly resided there for five or six hundred years. It was also stated in the manuscripts that there was a greater number of Jews in Hangzhou. This could be taken to suggest that loyal Jews fled south along with the soon-to-be crowned Emperor Gaozong to Hangzhou. In fact, the 1489 stele mentions how the Jews "abandoned Bianliang" (Kaifeng) after the Jingkang Incident.