JW is all centred on the Book of Revelation / Apocalypse of John. There was controversy over whether this book should have been included in the New Testament or not. Initially the decision was yes, then it changed to no so it was omitted, then it was later included. Some sects of Christianity use a New Testament that does not contain the Book of Revelation. Had the Protestant New Testament not included the Book of Revelation then the JW would probably have never existed. Even Martin Luther, the founder of Protestantism, seriously questioned the credibility of the Book of Revelation and put it into the appendix of his German translation of the Bible.
