It took about a week and a half. The map of China (rotated 45 degrees clock-wise) in the picture below shows the half way mark, where all the powers converged towards the middle to fight it out (i am the red colour).
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Three lessons learned from my conquest:
1) To have absolutely everything, means absolutely nothing. The more i have, the more empty i feel. Maybe this is exactly how the Emperors felt - that's why they needed more and more women, and more and more women to satisfy the emptiness brought upon by all the previous women.
2) There is no one to share the joys of my conquest with. In my case, no one else that i know plays this game. Did Chinese Emperors share their joys of conquests with other Chinese Emperors?
3) Subordinates are impersonal. When one begins to hold supreme power, his previous relationships will begin to become supremely isolated. I could check my subordinate stats and abilities, and order them to do things for me. But i could not chat to them.. on a personal level. That's why i deleted the game.
In conclusion, games can sometimes bring more than learning of strategy and enjoyment.