I had a good time with this game too, and I'm glad I was able to squeeze it in at the last minute.
Similar start to others here. Teched sailing to get off the island and killed Hatty after she had populated her island for me. Quickly settled marble island for wonders and noticed commerce square for bridge to Mansa. I was a little slow attacking Mansa and could only manage two cities before quitting my military endeavors on the northern front.
By then I had caravels. Played nice with the other AI. Traded techs like mad. Used a specialist economy and spawned many GS, eventually settling 8 or 9 in Hatty' s former eastern city, which became my main tech engine, surpassing the capital after I built the Great Lib. Wonders built included Great Lighthouse, Great Lib, Mids, Parthenon, Hanging Gardens, Taj, and Space Elevator, plus National wonders: Heroic Epic, National Epic, Oxford, and Ironworks.
Converted Mansa to my religion so he would trade with me again after the war. Used liberalism on Astro and landed on continent to the west in time to grab two more cities, which were left in the wasteland of a big war, which I missed completely. Were there more than two empires on that continent to start? Only Kublai and the Persians were left when I discovered it and a bunch of razed city rubble spots.
Turtled down with nine cities for the space race. Bribed Mansa into attacking Kublai, because he was annoyed with me and would have attacked soon, demolishing my relatively defenseless empire (focused on teching). The other AI I was able to manage through diplomacy.
Centuries later, the turn after Mansa and Kublai declared peace, Kublai attacked me. It was fairly close, and he took a few cities, but I was able to squeeze in the last SS part and win a space race victory in 1866.
Thanks for the unique game, Cactus Pete. Looking forward to more challenges from you.