Discussion. 6-8 p.m., DuSable Museum of African American History, 740 E. 56th St., 773-947-0600, dusablemuseum.org, $10. Prominent historian and author Lerone Bennett, Jr. discusses issues relating to the Civil War and its aftermath in the wake of the 150th anniversary of Lincoln’s signing of the Emancipation Proclamation. To R.S.V.P., call 773-947-0600, ext. 290.