#nabta-playaUnmoderated tagAll postsExplore CommunitiesTrending CommunitiesSteemitCryptoAcademyNewcomers' CommunitySteemit Feedbackআমার বাংলা ব্লগKorea • 한국 • KR • KOSTEEM CN/中文AVLE 일상Steem POD TeamTron Fan ClubSteem AllianceBeauty of CreativityWORLD OF XPILAR#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…
