#nabta-playaUnmoderated tagAll postsExplore CommunitiesTrending CommunitiesNewcomers' CommunitySteemitCryptoAcademySteemit Feedbackআমার বাংলা ব্লগKorea • 한국 • KR • KOSteem AllianceSTEEM CN/中文Steem POD TeamWORLD OF XPILARAVLE 일상Comunidad LatinaBeauty of Creativity#nabta-playaTrendingHotNewPayoutsMutedcornerston (45)in #nabta-playa • 7 years agoAfrica Astronomy: The Stone Calendar of Nabta Playa, NubiaBy even the more conservative estimate, these are by far the most certain ancient megalithic astronomical alignments…
