“World’s oldest calendar” discovered carved into 12,000-year-old monument
Göbekli Tepe, an ancient archaeological site in southern Turkey, has long fascinated researchers as it is one of the earliest known human settlements. The Mesopotamian site is about 12,000 years old and dates to the beginning of the Holocene, the current epoch that began after the glaciers retreated. The 12 oldest cities in the world. […]
