Predator class - headed to space.
When I entered the Middle Ages in 750 BC, I was in a phony war against the Iroquois. The Americans were my allies tied with a peace treaty. On the other continent, in my effort to make the Hittites a superpower, the Hittites and Spanish were taking England’s land.
I immediately gifted Babylon to the Middle Ages with me, and they got Engineering which meant I could count on the AI providing Feudalism, Invention, and Gunpowder, so I started on the top part of the tree after gifting the rest of the AI into the Middle Ages.
I attempted to increase my research ability through expansion, but I don’t think I did a very good job of it because I didn’t expand very quickly, and my research was very slow for too long. I didn’t build any libraries until almost the AD years preferring to build military instead, but I didn’t use cash-rushing enough to conquer as quickly as I should have.
In 590 BC, the Americans broke our alliance/peace treaty by signing peace with the Iroquois. I immediately also signed peace with the Iroquois and signed an alliance with them against the Americans (2 separate transactions this time). Periodically, they tried to get out of the war, but I kept bringing them back in with techs. The war was fought primarily with horsemen, but it went far too slowly with the Iroquois capturing the last American city in 30 BC.
I immediately declared war on the Iroquois and captured 4 cities on the first turn of war without RoP abuse. One tidbit I picked up (which I should have realized if I ever thought about it) – if you are going to fight the Iroquois, give them Invention first because they prefer longbows to mounted warriors. The war just got easier as time went on.
Meanwhile, on the other continent, my best friends the Hittites declared war on me. It turned out OK since they gave me war happiness and never managed to land a single unit on my continent. Meanwhile I signed alliances with the Hittites’ weaker neighbors (only 1 at a time) so the Hittites could continue to grow in the hope that they would be able to research quickly in the later ages.
My research path was:
-470 - Complete Monotheism – use it to trade for Engineering and Feudalism and gift those 2 around.
-270 – Complete Theology.
-90 – Trade for Invention.
-30 – Complete Education – gift it to my research buddies right away so that they can start Astronomy after finishing Gunpowder.
170 – Complete Banking; trade for Chivalry and Gunpowder.
260 – Complete Chemistry; trade for Astronomy.
320 – Complete Physics.
380 – Complete Magnetism.
420 – Spain learns Metallurgy; I learn Theory of Gravity and trade to enter the Industrial Age.
(That was my closest save to entering the Industrial Age).