"The Book of Revelations didn't exist until the late 19th Century and it was not in the Bible until the mid 20th (written by Rothschild-funded researchers, by the way, in the late 1800's)."
Do not ring true to my understanding of the Book of Revelation.
The Gutenburg Bible was the first printing press Bible and is dated 1450 and contains Revelation: http://molcat1.bl.uk/treasures/gutenberg/record.asp .
Martin Luther disputed Revelation in the 1500's and then later accepted it.
The book is quoted by early church fathers in the 2nd century and the writing of Revelation is in the 1st century. https://en.wikipedia.org/wiki/Book_of_Revelation
These are just a few things I dug up this morning. I am by no means a scholar, but do not at all question the authenticityy of the book of Revelation.