Jewish pilgrims from Cappadocia, visiting Jerusalem, are mentioned in the account in the book of Acts of the first Pentecost after Jesus' ascension. (Acts 2:9).
One wonders if the churches found in this enormous city were where the spiritual descendants of those first-century Pentecost converts, worshiped.
History often overlooks how important Turkey was as a center of evangelism and development for the early Church. Finds like this only serve to further confirm that.