🌞 Dazhboh: Slavic Sun, Solstices & the Farming Year

Explore the real geometry of the Sun over a wooden hillfort valley: slide the date, latitude (Kyiv, Lviv, Odesa, Veliky Novgorod, equator) and time to see sunrise azimuth, day length, noon altitude and a gnomon shadow, then compare the Julian and Gregorian calendars. Every cultural text is labelled history, folk tradition, hypothesis or myth. Real equations, checked against an independent NOAA calculation.

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install