Scientists Found a 12,000-Year-Old Monument—It May Be The Oldest Calendar

https://www.popularmechanics.com/science/archaeology/a61806016/oldest-calendar-ever-turkey/

An ancient monument discovered in Turkey may just be an ancient monument. But, if its markings are what experts think they are, it might be the world’s oldest solar calendar.

originally posted at https://stacker.news/items/643379