Bonus Round: To 1887 AD [End Game]
Okay, so it seems that I am somewhat an idiot, and forgot that I have some saves uploaded on this thread!
I decided to continue this game just to see what would happen. I didn't hpost an 820 AD save so I went back to a save somewhere in the early AD's where I was still warring with Wang so that I could correct some of the mistakes I made.
Actually, the two things which I mainly focused on was:
1. Keeping Pusan and Cheju
2. GROWING THE CAPITAL (this was a critical one--I learned my lesson and from now on I will make sure to grow the capital in the middle ages).
And I also apologize in advance since this "round" covers pretty much the whole game from the mid AD's to 1887 AD (read on to find out what happened).

I didn't really have time to focus on detail as I'm already playing my second online game (Boudica).
So what happened?
Well, the war proceeded as normal, but I kept Wang's last two cities. In another great fortune for me, Hinduism automatically spread to P'yongyang so Pacifism would work there! I managed to get a GS to bulb Education (Researched Paper and Philosophy manually).
The weird thing was, I won the Liberalism race in 1080 AD.
It was a very close race. Elizabeth was almost there herself and Willem, who I had just met, was even closer. In fact, I won by ONE SINGLE TURN (I reloaded and stopped research and Willem discovered Liberalism the turn after). Willem, by the way, was definitely the AI who won Liberalism in my other game in 820 AD. And he did this with only 5 cities.
After Liberalism, I started meeting the civs on the other continent, which were Willem (Cre/Fin), Huayna Capac (Fin/Ind), Ramesses II (Spi/Ind), and Joao II (Imp/Exp). I REALLY hate Huayna and Joao, and these games proved to be no exception.
My fears in the early game were confirmed when EVERYONE on the other continent was Jewish, making one big happy family. Willem actually converted to Free Religion because he had the S. Paya and wouldn't you know it -- Joao declared war on him. The war was a cakewalk for him. In the beginning of the game, Joao had outrexed everyone and had about 15-ish cities while Huayna had 8 and Willem had 5. Over time, Joao obviously managed to take advantage of his extra land and soon reduced Willem to 2 cities.
(Yes, Willem was reduced to 5 cities and STILL was the tech leader until I built the internet. Creative AI's are even more powerful than I thought.)
Now for Huayna and Ramesses, they were also quite advanced (though Ram didn't know Code of Laws until 1300) and had defensive pacts together, so I knew that I would have to do something to stop them in the future.
Now, after I discovered Liberalism, I began to expand, razing/resettling barbarian cities and growing the cottage economy. I teched towards Astronomy as I needed the trade routes and no one had it (that actually was my lifeline--discovering technologies that no one else had and trading). After Astronomy, I went for monopoly techs like Scientific Methold, Steel, Steam Power, and Radio. I was still woefully behind in GNP as you can see when I discovered Steam Power in the following screenshot.
And radio:
I HATE it when other civs on a continent are all friendly.
I did manage to get some wonders in Seoul, my Ironworks city.
Now before I built the Eiffel Tower, Willem had already completed Apollo Program in 1740 AD. These Immortal AI's are crazy.
Oh yeah, Joao II decided he didn't like me and declared war. Oh joy. Thankfully, he only pillaged some of my fishing boats (with destroyers!) while he never loaded a single troop onto my land. Easiest war ever. And soon, he went back to declaring on Willem.
I really couldn't afford an AI to assault me overseas, so I signed this lovely deal with my friendly neighbor who I never attacked.
With me woefully behind in tech, it made sense to go for the internet (which after all is a lifesaver in high levels). I beelined to Computers and was the first there.
Tech before/after:
[To be continued in next post]