Angel Mounds: The City Before Evansville

Before Evansville existed, before Indiana was a territory or a state, before European contact reached this bend of the Ohio River, there was a city here. Not a camp, not a seasonal settlement, but a city, with a central plaza, a defensive wall nearly a mile in circumference, thirteen earthen mounds of varying height, and a population that reached perhaps a thousand people at its peak. Archaeologists call it Angel Mounds, and they date its occupation from roughly eleven hundred to fourteen fifty of the Common Era. At its height it was the regional center for dozens of smaller communities within about seventy miles in every direction.

The people who built it were part of the Mississippian culture, the great mound-building tradition that produced Cahokia in what is now Illinois and stretched across the river valleys of the interior South and Midwest. At Angel Mounds the largest earthwork rises about four stories, its flat top once supporting a structure used by the people who led this community. Surrounding it: smaller platform mounds for ceremonies and administration, homes arranged along streets, storage buildings, a palisade of upright logs with watchtowers reinforcing the perimeter. This was engineered urban space.

In nineteen thirty-eight, archaeologist Glenn Black and the Indiana Historical Society, funded largely by pharmaceutical heir Eli Lilly, began the careful work of excavating the site. The Works Progress Administration sent more than two hundred and fifty workers during the Depression years, and from nineteen thirty-nine to nineteen forty-two they uncovered over one hundred twenty thousand square feet of the site and recorded two point three million archaeological objects. Black dedicated the next three decades of his life to understanding this place.

Why did the city empty around fourteen fifty? The evidence points to several intersecting pressures: a regional drought, over-exploitation of timber and game, and possibly seismic activity. The people dispersed; where they went is not entirely known. The mounds endured, and the site is now one of the best-preserved Mississippian sites in the United States.