| | Cahokia: A Pre-Columbian City in the Continental United States (Site not responding. Last check: 2007-10-14) |
 | | Of course, it seems inexorably the case that it is impossible for modern people to fully understand the social significance of such structures for Cahokians, but it is possible to conjecture upon their function. |
 | | While it is entirely possible that Woodhenge, of which there is the largest most prominent versions, but smaller versions exist as well, served its function according to the motion of the moon or the sun, operating on either a lunar or solar calendar. |
 | | What seems most possible is that Woodhenge served to mark dates in the calendar that were significant to the Cahokians for reasons unknown to us, but likely all important for the mound builders themselves. |
| ccat.sas.upenn.edu /~jessed/project/woodhenge.html (248 words) |