Hi all, sorry for the delay in posting, I've had a crazy week!
Thalkirst, thanks for your detailed feedback and the thumbs-up on the tech tree. I worked a
long time to make it as accurate is possible. It's not perfect, but I think it's a good crack at it.

I'll take a look at the things you point out, I'm not at my game at the moment. I'll consider Hungary, but I'd prefer to pick another non-Eurocentric, non Middle-Eastcentric civ to round things out a bit. I'm just unsure of which one.
I have another patch, 0.52 virtually ready to release. It includes some artfixes, music for Dido and Theodora, new Iroquois units by bernie14, more Civilopedia text, and the GreatPersonMod for BtS, one of my favorite mods that was recently updated to BtS.
The next patch, 0.55, is going to include some of the suggestions posted on the forum so far. I'm aiming to include a World Map with the new resources distributed, the Austria units Makomako pointed out, and revamped game speeds.
Cheers,
ripple01