Sorry for the late reply. Have less time for AOE2 this weekend. Lots of good bonuses and techs which went into new civs since DOI, came from the forum. Eg Herbalism, Bengali 2 vill per TC, Mule cart, Fortified church, Champi, Armenians eco bonus of 40% more effectve techs, etc
Herbalism: Archer and Champi Scout lines move 15% faster.
2 Vill per TC
+25 starting resource(Tupi) and 50% more effect from eco upgrades (Armenians)
Champi based on Talwar sworsmen design
Frotified church came from temple