SEPTEMBER

The U.S. is home to six million undocumented immigrants, some 300,000 of whom live in Illinois. Today a coalition of groups will march under the umbrella of the Grassroots Collaborative in support of a proposed federal law that would grant amnesty and legal standing to these immigrants, who “pay taxes and fill many key roles in our economy, yet are subject to abuse and exploitation in the workplace due to their lack of status.” The rally starts at 10 AM in front of the State of Illinois Building at Randolph and Clark in Chicago, and demonstrators will march from there to the Federal Plaza at Adams and Dearborn. Call 312-427-2533 for more information.

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25 MONDAY

The city’s venerable Rookery Building at 209 S. LaSalle takes its name from the City Hall and water tank–a favorite roost for pigeons–that were temporarily located on that spot after the Great Fire in 1871. John Wellborn Root designed the building in 1888, Frank Lloyd Wright remodeled the lobby in 1905, and the whole thing was restored in the early 1990s, overseen by architect Gunny Harboe. Harboe will discuss the restoration tonight at 7:30 at the Nineteenth Century Women’s Club, 178 Forest in Oak Park. It’s $12, $8 for members. For reservations call 708-848-1976.