what does religion and cities and civilization got to do with each other?
cities dont have a "bible/koran/torah" that tells them to kill/convert the non believers
and civilization was around before religion
soo....?
Well... Actually, Rome was built by the Catholics, the Vatican is its own city, Mexico is devoutly Catholic, India is devoutly Hindu, China is primarily Buddhist, so on and so forth.
Now without blatantly pulling out a map and throwing darts at it, I can safely agree with the opinion dhadnot brings to the table.
Regardless if "religion" came "after" the colonization of some of the world's largest and most prominent cities, it begs the question would they exist without input from the churches pocketbook.
Sure, it's easy to say they would exist without the input of the church, however it's just as easy to say they wouldn't. I believe the latter, though a combo of both are actually likely to have happened if the churches money wasn't put to use in designing and sustaining the cities.