Ah yes. I watched on HRT some days a go a documentary about this Orion calender from the Vučedol culture.
Let's make this thread 'pan-yugoslavian'
Vinča culture - Wikipedia, the free encyclopedia
Butmir Culture - Wikipedia, the free encyclopedia
And here about the Sopot culture. I only found this on croatian langauge. Maybe you, Heretik, could find some source on english?
Arheologija - najnovija istrazivanja