The Woodhenge Revelation and What the Stars Meant

When Warren Wittry, an archaeologist working at Cahokia in the early 1960s, first identified an arc of large post holes in the soil of the Cahokia site, he did not immediately understand what he was looking at.

The post holes — circular stains in the soil where large wooden posts had once stood and then rotted — were individually not unusual; large posts were a common feature of Mississippian construction.

What made these different was their arrangement: they formed arcs of a consistent radius, suggesting that they had been placed as part of a deliberate circular pattern of considerable scale.