By Dan Eden: http://mondovista.com/adamscalendar.html
Condensed by Native Village
[Note from Native Village: This fascinating article is simply intended to share how interesting and unique our cultures, history and beliefs can be.]
Dating the site:
Finding the remains of this huge community of people living and working together was a major discovery. But dating the site was a problem. The breakthrough came quite unexpectedly:
Johan Heine discovered Adam's Calendar in 2003. While rescuing a pilot whose plane crashed on a cliff, Johan noticed a strange arrangement of large stones sticking out of the ground. He walked over to the monoliths and realized that they were aligned to the cardinal points of Earth -- north, south, east and west. There were at least 3 monoliths aligned towards the sunrise. But the west side had a mysterious hole in the ground. Something was missing.
John kept visiting the site in wonderment. He suspected it was a stone calendar. One day the local horse trail expert, Christo, came riding by. He explained to Johan that a strange shaped stone had been removed from the spot some time ago. That stone was now near the entrance to the Blue Swallow nature reserve.
Johan found the anthropomorphic (human-shape) stone. It was intact and had a plaque stuck to it. The stone had been used by the Blue Swallow foundation for their reserve's opening in 1994. The irony is that it was removed from the most important ancient site found to date. Mysteriously, the stone was returned to the reserve.
The first calculations of the calendar's age were based on the rise of Orion, a constellation with three bright stars forming the "belt" of the mythical hunter.
Because Earth wobbles on its axis, the stars and constellations change angles in the night sky on in cycles. This rotation completes a cycle about every 26,000 years. By determining the position of Orion's three brightest stars against the horizon, scientists first thought the site was 25,000 years old.
But new and more precise measurements kept increasing the dates. The next calculation was presented by a master archaeoastronomer. He suggested an age of at least 75,000 years.
The most recent and accurate calculation from 2009 suggests an age of at least 160,000 years. It's based on the rise of Orion and the erosion of dolerite stones found at the site.
Pieces of the marker stones had broken off, fallen to the ground. This exposed to them to natural erosion. When the pieces were put back together, about 3 cm of stone had been worn away. By calculating the erosion rate, scientists could determine the age.
Next: Page 3: Who Made This?