While preparing for our hundred-year Gospel in Vietnam celebration, the church's board of directors recommended I collect and edit this history book about the churches in Vietnam. This long-term, complex project requires great accuracy. Thus, to support the far-ranging reach of this book, I only recorded highlights before 1975 and summarized Church activities after 1975 that have never been systematically recorded. The hundred-year anniversary celebration of the Gospel being spoken in Vietnam was held from June 14-16, 2011, in Đà Nẵng city, after which this book was compiled to record the general formation and development of Vietnamese churches throughout the last century.