试论唐代西域的可萨汗国--兼论其与犹太人入华的联系

可萨是西迁到高加索地区的一支突厥化部族，公元7至9世纪，可萨人在伏尔加河中下游建立了强大的可萨汗国，成为丝绷之路北道上的重要中转站，同拜占庭帝国和阿拉伯帝国保持着密切的政治经济联系。8世纪中叶，可萨人从萨满教的信奉者转而皈依犹太教。本文着重分析可萨人改信犹太教的历史背景和影响，并结合唐代文献证明可萨汗国通过直接或间接的途径同中国相连，由此提出这样的论点犹太人或可萨犹太教徒有可能从可萨汗国出发，经过从中国到拜占庭的北道入华。

On the Qaghanate in the Western Regions in the Tang Dynasty

The Khazars is a Turkic tribe that moved from the east to northern Caucasus. From the 7th century to the 9th century, they established a strong qaghanate, thus becoming an important transit station in the north route of the silk road, keeping close relation with Byzantine and the Arabic Empire. Around 750's the Khazars, quitting their Tengri cult, converted to Judaism. This paper discusses the background and impact of the Khazars conversion, and quotes Chinese documents to prove that Khazars contacted China directly and indirectly in the Tang Dynasty. Therefore, Khazars is the most probable starting point for the Jews or Khasarian Judaists to enter the Tang Empire along the north route that connected China with Byzantine.