Posted by:
Larz
(---.lightspeed.cicril.sbcglobal.net)
I just saw that the maritime museum has an open house and free lecture on the 3rd Friday night of each month. This month, March 20, they have a lecture on the reversal of the Chicago River and the construction of the Sanitary and Ship Canal.
http://www.chicagomaritimemuseum.org/event/march-third-friday-building-canal-save-chicago/