A Native American city, larger than Paris and London at the time, was in Illinois. New research might shed some light on why it was abandoned and also challenge our misconceptions about Indigenous societies.

A therapy using sensory stimulation, like eye movements, is helping patients overcome trauma. We heard from a practitioner and someone who found it successful. 

On The 21st: What is the experience of being a homeless youth in Illinois? We talked with one formerly homeless youth and those trained to help. Also, Sen. Durbin and others say the Cahokia Mounds should be named a National Monument. And NPR's Kelly McEvers talked about her new podcast.