strategyonly
C2C Supreme Commander
Another thing that needs to be done is to move the buildings, especially, wonders from their current techs to the last of the techs that they need for their building or at least have that tech as a requirement. For example The Spinx and The Pyramids both require sculptures which means that the tech sculpture should be a requirement to avoid confusion.
It is this last which caused me not to be able to build some buildings in their historic period because I did not know what I needed to research. My usual testing is about making sure the buildings work and that you can possibly get the wonders in the period they were historically built.
Now this sounds reasonable.