Cahokia Mounds State Historic Site is celebration of the spring equinox with the return of the Woodhenge event. Woodhenge is a man-made sun calendar similar to those used to mark the seasons by people in ancient civilizations. Sun watchers gathered this morning before 7am to watch dawn break over Woodhenge.
Assistant Site Manager Bill Iseminger speculates as to how the Winter Solstice would have been celebrated at "Woodhenge" 1,000 years ago.
Click here for Iseminger's comments
Iseminger says that the sun calendar was a very significant tool used by ancient civilizations and that it was used to identify both the vernal and autumnal equinoxes and the summer and winter solstices. You can find out more about Woodhenge or other events taking place at Cahokia Mounds State Historic Site by calling 346-5160 or y clicking here: http://www.cahokiamounds.org/