Adam’s Calendar: Oldest Megalithic Site in the World?
Adam’s Calendar is controversially suggested to be the oldest man-made structure in the world. Sometimes referred to as “African Stonehenge”, it predates both Stonehenge and the Great Pyramid of Giza by tens of thousands of years. Located in Mpumalanga, South Africa it is a standing stone circle about 30 meters in diameter and has been estimated by some accounts to be more than 75,000 years old. Various astronomical alignments have been identified at the site and it is possibly the only example of a completely functional, mostly intact megalithic stone calendar in the world.