> what they thought were the ruins of an ancient Egyptian temple dating back to the sixth century BCE... >an astronomical observatory, deemed the first and lar

> what they thought were the ruins of an ancient Egyptian temple dating back to the sixth century BCE... >an astronomical observatory, deemed the first and largest such structure yet found Hmmm. No suggestion of a period/era, despite that last claim of 'first'... Meantime, much farther up the Nile at Nabta Playa in the Nubian desert is a stone circle dated to circa 7,500 BP. https://medium.com/@humanoriginproject/the-ancient-astronomy-of-the-nabta-playa-egyptian-stone-circle-c8ecb2800223 https://medium.com/@humanoriginproject/the-ancient-astronomy...