502 South Spring Springfield, IL
Found in Fulton County, the Emmons rattle mask, which dates from the Middle Mississippian Period about 800 years ago, is extremely rare. There has been nothing else like it found in Illinois or elsewhere. Because it is made of wood, probably cedar, the odds of such an object surviving so long are extremely low.
No one knows for sure when wolves and human beings officially began their mutually beneficial partnership, but some of the oldest known domesticated dogs in North America were found at the Koster Site in Greene County. The remains of four dogs were intentionally buried near human burials there about 8,500 years ago.