I'm at turn 310 of a standard speed + size game and the only victory type I'm leading in is domination, and that's purely because my military strength is double that of the second place. At this stage, it seems impossible for me to capture 8 capitals in 200 turns. I am curious though if anyone has gone for, and successfully got a domination victory where come mid-game nobody had lost any capitals? Maybe this happens all the time and this is a silly question. Realistically, do I need to be capturing the capital of my neighbours in the early eras before they get too built up and surrounded by other cities and districts?