Just submitted. Military defeat in 1295 AD 748 points. Monarch is just beyond my ability at this time.
Scouts discovered most of the land early. Goody huts provided 1 settler, three or four tech, a couple warriors, and a couple maps.
Expansion was soon limited by China to the North and West, and by India to the East.
I built barricks in most cities early on and upgraded most of my warriors to swordsmen after I connected Iron. Then took them up to war against China. That didn't go as well as I had hoped, but I did get a couple cities. later two more Chinese cities culture flipped to me. Leaving China with only three cities on the far western tip on the continent.
Meantime, tech growth was s-l-o-w.

Traded some luxuries for tech, but rarely had more than world map to trade. I tried to keep China as isolated as possible. They never even got horses. but did get Iron from someone. After gunpowder, India did trade saltpeter one time. That allowed me to upgrade a few musketmen. Never made it out of the middle ages.
I tried to attack China again now with knights, but they had stationed like a GAZILLION pikeman in their cities who were just to strong for them.
Then came the quick and decisive end. France rode in from the east with cavelry. Pulled up to my eastern-most city and declared WAR. This was totally unprovoked. I had always paid tribute to Joan, and everyone else. Soon India joined in, then Japan. I wasn't keeping track but I think they finished me off in less than five turns.
Appears that first France saw easy pickings. Joan had just finished off Persia to her west and turned her eyes on me. WHY? She had to ride all the way through Babelon and part of India to get to me. She also shipped a few troops to attack in the NW.
IS THERE ANYTHING I CAN DO TO AVOID SUCH A SUDDEN AND UTTER DEFEAT IN THE FUTURE?