The battle over endorsements in the race for mayor. A look at black flight from Chicago. Local historian Timuel Black turns 100. And a big anniversary for the Art Institute.

• Chicago Mayoral Candidates Differ on Elected School Board
• Analysis Links Black Residents’ Exodus from Chicago with Unemployment
• Reflections on Turning 100 with Chicago’s Remarkable Timuel Black
• The Art Institute of Chicago Celebrates 125th Anniversary