Okay, I promised a longer writeup, so here it is, be wary though as it's a bit rambling.
The Plan and Research
First, I had very specific goals here - research Chemistry and Astronomy, take over the continent, send Grens overseas for domination. I tried to make sure all my decisions reflected that, but, given that I was rushed I played sloppily.
Techwise, I saw we had a Great Scientist that was going to be born in our capital, so I set him aside for researching (most) of Education, and switched research to Optics for circumnavigation and the ability to get Astronomy as a free tech from Liberalism. I traded JC for Calendar (prereq for Compass) and Currency (let's us run merchant specialists.)
Here was my tech path: Calendar (trade), Currency (trade), Compass, Optics, Education (Great Scientist), Liberalism, Astronomy (free), Engineering, Gunpowder, Chemistry.
After Chemistry I set research to 0% (though we'll get Steel in 20-30 turns due to Representation.) I'm using excess gold to upgrade CR2+ macemen into Grenadiers.
The Early Game
I cancelled the Colossus (Astronomy would obsolete it so quickly) but kept the Gardens & Notre Dame. In the other cities, I heavily used the

to build more units as we didn't have enough.
I made a bunch of

moves in the beginning, including forgetting to use the great people until about 8 turns into the game. I used the Great Prophet to research Theology and switched to Theocracy + Bureaucracy (stronger economy, still have 6 xp units.) The great artist I sent to live in a Spanish border city near Nappy's lands for the gold, beakers, and increased culture.
I forgot to build Caravels when I got optics, but whipped two a few turns later and met the other AI's & circumnavigated the earth. I then disbanded the pair after searching out the other continent's shoreline. I probably should have kept one around so I could keep an eye on the next target's cities (or sent a missionary over.)
War with Isabella was not difficult - she didn't have any longbows until she was down to her last two cities, by which point I had enough CR3 macemen that it didn't really matter.
The War with Napoleon
Because I was Confucian, I could see into some of Napoleon's cities and saw he had a couple of nasty stacks, including a 3 cat 7 horse archer 2 elephant stack! I knew that stack had to die before before he got Guilds, so I used slavery to build some pikemen and rushed all my elephants out to the western cities, and went to war prematurely.
If I hadn't had the luxury of seeing into his cities, I would have been caught off guard by his counterattack like cabert was. Even prepared, Napoleon put up quite a fight (his army seemed big by Monarch standards, let alone Prince) but his glory days are over - his reserves seem to be gone and I have three stacks closing in on him, all led by at least 2 CR3 grens (but each stack is down to only 1 catapult.)
One interesting thing is that I built lots of pikemen (9!) Normally I don't build pikemen at all unless I don't have elephants and am threatened by knights, but in this case I needed them to fight Napoleon's elephants and they can be upgrade them to Grenadiers.
The Future
The general strategy is to use Representation and merchant specialists to keep the economy afloat and research Steel, while moving on to attack Saladin and Julius. Excess gold is used to upgrade CR macemen into grenadiers. Settlers will be built to claim all the extra land on our continent (all that icky ice!

)
I'm having a hard time deciding between two strategies in the near future:
1. Whip out a few more galleons and a couple of frigates, then revolt to Caste System to run specialists to keep the economy afloat.
2. Trade with Mansa for Guilds + Banking, whip Banks & Grocers, and then revolt to Caste System + Mercantilism.
I think the economy is strong enough (especially after building wealth, assigning more merchants, cottage growth, micromanaging, etc) to win domination using option 1, but option 2 is a bit more on the safe side, though risks escalating the military progress of the other continent.
I'm perfectly content with letting Mansa run away with all the technologies. I have no intention of fighting him and he won't get a space launch before we get a domination.
