Central Asia is the core region of the Asian continent and stretches from the Caspian Sea in the west to China in the east and from Afghanistan in the south to Russia in the north. It is also sometimes referred to as Middle Asia, and, colloquially, "the 'stans" (as the six countries generally considered to be within the region all have names ending with the Persian suffix "-stan", meaning "land of")[1] and is within the scope of the wider Eurasian continent.
The spread of Christianity in Central Asia seems to have been facilitated by the great diffusion of Greek in the region (Seleucid Empire, Greco-Bactrian Kingdom, Indo-Greek Kingdom), as well as Aramaic, the language of Jesus Christ. The spread of the Jews in Asia since the deportation from Babylon and the capture of Jerusalem by Titus also seems to have been a contributing factor.