See above. Mansa Musa doesn't make his Hajj. He doesn't give away shitloads of gold to random people inflating the currency in the Middle East. That gold doesn't then make its way to Europe via the Italian city states.
What next?
Played the CK2 mod as Robb.
War started out really well, with me mopping up small bands of Lannisters here and there with my Riverlands forces and then eventually crushing Tywin's main force when I managed to trick him into attacking me head on over a river with 3 5k bands waiting as...
So, playing as Abysinnia. I have Ethiopian culture and a genius ruler. I've conquered all of Ethiopia and Egypt, Arabia, Jerusalem and most of Mesopotamia. The Mongols have just landed however and I'm not sure how I'm going to take them on, any advice?
Some of the most fertile areas in the world being declared no mans land for one. Fix the attrition in Mali so that the muslims can't just steamroll through.
Several. Starting with:
Bluecoats lose revolutionary war.
Napoleon doesn't sell Louisiana to America for any one of an unlimited number of reasons.
Less successful US-Mexico war
Just started a new game as the Sheikh of Mali. Managed to conquer Ghana and Songhay and create the Kingdom of Mali but now I'm in a pickle. Taking down the Almovarid dynasty is all but impossible since I don't have enough men to fight them and as a Muslim I can't marry my way around the problem...