The inspiring, tragic, almost universally untold story of the church begun by the "Parthians, Medes, Elamites, [and] residents of Mesopotamia" who were in Jerusalem on the day of Pentecost (Acts 2:9); a church whose missionary enterprise swept across Asia, reaching India, China, and possibly even Japan by the mid-700s. Sonlight resource: https://www.sonlight.com/products/the-church-of-the-east