I'm sure I've been doing this all wrong, but I typically try to get Calendar as fast as possible so I can build stonehenge. I can get it nearly every time. Then I go try to reveal iron, then engineering for the lumbermills, and finally whatever allows me to get the longhouse. Basically, that's the only thing I've come up with, but I obviously recognize that I'm throwing dice at what I think is useful. Does anyone have a better idea for my native peoples? Thanks again for any help.