As I mentioned in a previous thread, I have been investigating the evidence for the date of the book of Revelation. I have been looking primarily to internal evidence as such evidence comes from the infallible Word of God. Of course, my interpretation is not infallible, but I do think priority should be given to the Scriptures above all else. So, of course, I have been reading through Revelation looking for such internal clues and I think I found one. Why is this a clue? This is a clue because it has reference to a city and events, namely the murder of Antipas. History then can be consulted to understand the times to which Jesus is speaking. From a website called bibleplaces.com I found the following information regarding this city's history: As an aside, we can see from the history why the Lord called this place the throne or dwelling of Satan. What I found as an interesting clue, if this history be accurate, is that it was Domitian who made the temples, and the worship of those deities, a test for civic loyalty. If this was the case, then it seems likely that any Christian persecution at pergamum would have mostly likley had its zenith under Domitian and likely who is the murderer of Antipas. As a clue then, this would lend the evidence, beginning with internal evidence, toward the Domitian date, or latter date for the book of Revelation. Edited in: The history source is http://www.ctsp.co.il/LBS pages/LBS_pergamon.htm which is not the bibleplaces.com website, but a link from it to the above source.