I started out building Warriors and eventually blocked off the entrance to my peninsula. My research took me to The Wheel first, but I did not build War Chariots initially. After meeting and trading, I decided that I would conquer the world with Swords. This worked well as I also could upgrade my Warriors, and because I had been doing that in the last quick game. I connected up the iron just north of the starting point while making a road through the mountains. I also put a city on the hills horses to make the road faster. China was my first target.
Since the start did not allow for lots of cities, I decided that I would jump my capitol to Chinese lands as soon as possible. I built my first core with that in mind, with the FP to be built in Heliopolis.
After two or three wars, I managed to capture 3 Chinese cities by force, 2 through peace deals (including an island city), and destroyed 4 size-1 cities by 130AD. That left the Chinese with two cities and me with a great second core. In fact, this is probably the best second core that I ever had. I used 3 of the old Chinese cities and 4 of my own. The Americans had placed 2 at a perfect distance from Shanghai. I jumped palace to Shanghai in 110AD.
Events that took place before the palace jump led me to reconsider my sword-conquest idea. First off, everyone was in the middle ages by now. I was in the middle ages too thanks to a military leader and thus the Great Library in Shanghai in 350BC. This let me build up money for upgrades and rushed buildings. I had switched to Monarchy in time for my golden age which started in about 230BC. Starting around 50BC, I had enough Medieval Infantry to take the rest of China, and I decided to take the Cavalry route. I was losing MI really fast, so I decided to switch production to Library, Barracks, and War Chariots and change to the research game.
In the end, I built a total of 8 Libraries in my two cores. I researched directly to Military Tradition, after switching to Republic in 210AD. Along the way, the Americans fell off the map. They had always been spread out, but things got worse for Lincoln. I received Boston and New York through cultural flips, and the Germans took San Francisco, Atlanta, Seattle, and Chicago. Washington was all they had left. After taking China's last two cities, I realized that conquering China gave me four additional luxury resrouces: Dyes, Furs, Incense, and Spices.
I built up War Chariots as much as possible until I received Chivalry in about 500AD from the Great Library and started going after the Celts. The Celts did not have iron, so Knights worked well against Spearmen. However, the Arabs had declared, so I was fighting the Arabs for Celtic land. I think Entremont was captured back and forth for 5 consecutive turns.
Once I had MT in 620AD, conquest went much faster. I learned from my wars with the Germans that cities with foreign citizens (Celts and Chinese) don't get destroyed when captured, which is nice. I managed a Domination Victory in 850AD. My second core looked really good at that point.
My conquest progress went something like this: