Historical Marker
"Original Professors Row"
Historical marker location:
5244 South Greenwood Avenue, Chicago, Illinois
( Marker is at the intersection of South Greenwood Avenue and East 53rd Street, on the right when traveling south on South Greenwood Avenue.)
The Chicago River was once so polluted that it caught on fire several times in the mid-20th century. The river was so polluted with chemicals and sewage that it was almost devoid of life. Today, the river has been cleaned up and is a popular spot for recreational activities like kayaking and boat tours.