Austria Bonus Game Spoiler.

[Tubby Rower]

Techs can't be unlearned though.

Funny though. Some days I feel dumber than others....

 

[Tone]

That's probably true, Alan. I think my problem is that I have a vague memory of losing Sun Tzu but keeping the barracks. I have either remembered incorrectly or built them before the wonder and then didn't sell the ones I'd built. It was a long, long time ago!