I don't believe that they represent church history because on the planet right now we have ALL 7 of those churches found within the ranks of the Lord's churches....they accurately represent the types of churches that will be on the planet from the 1st church to the last church....I, "through friends" who pastor churches in like 15 different states and a handful of countries, know of small, poor faithful churches, rich churches that are doing every program under the sun with no real love for the Lord, churches that have allowed women to run them, churches that have people conquerors in them, churches that are a church in name only, etc....At any time frame on the planet you can find a good sampling of the 7 addressed in Revelation and the entire book is not prophetic....
The things that were, are and yet to come....it contains both past, present and future context....