Насчет Вавилона:

Babylon
Nebuchadnezzar II

Earn free great scientist when you discover writing. Earn great scientists at double normal rate.

UU: Bowman (6 combat, 8 ranged -- "stronger in combat than the Archer, both defensively and offensively")
UB: Walls of Babylon (80 hammer, 1 gold maint, 7.5 defense -- not only is better defense than normal city walls, but increases combat during bombardment)