I finished my "practice" games with the Maya and moved on to the Celts.

My first game was a keeper. It was a bit of a nail-biter as you will see.
A traditional 2 cow, river start (324 dom limit) near the center of the map:
My builds were Warrior, Warrior, Settler, Worker, Granary, Settler. I researched BW and IW first. I got a SGL with iron.

I traded for alphabet and was on my way to a republic slingshot. As I researched the required techs, I was able to trade for the other techs as they became available. There was iron on a mountain to the east, which I settle next to and connected in time for my first barracks city to build my first Gallic swordsman from an archer prebuild.
I reseached Writing in 1950BC, CoL in 1575BC, and Philosophy along with Republic in 1425BC. I immediately revolted and became a republic in 1400BC. I started researching Polytheism next. I was tempted to use my SGL to build the Pyramids, SoZ or FP, but in the end I held out for ToA which I built in 1250BC.
I decided to start with England. I traded them republic and started war in 1300BC. I only had 4 Gallic Sw and 2 warriors. I succeed in auto-razing York and trigger my GA. From there I autorazed to 3 more and capturing London and Birmingham. I received Hastings in the north for peace in 1100BC leaving them with just a single city.
Edit: I left out this one.
I immediately swithed my attention to Portugal. It too me until 1025BC to reduce them to one city.
Edit: Moved this one down.
By that time I was worried that there would be enough land to reach the dom limit, so I eliminated England as their last city would yield more land. I had been rushing settlers where I could and rushing them to fast dissapearing unclaimed lands. I also settled so as to grab unclaimed coastal sea tiles. I wasn't able to to exceed the dom limit until 875BC. :shakehead Now the only question is who had the higher score? Mine was 15,095.