Eric Lefkofsky, the Chicago-based serial entrepreneur best known for co-founding online daily deals site Groupon, has given rise to six of tech companies that have achieved unicorn status.

At issue was whether a constitutional test requiring gun laws to be “historically” consistent with laws on the books in the 18th Century or earlier was applied correctly.

Ald. Andre Vasquez cited “fundamental justice concern” with former police officers getting to legally sell marijuana after locking people up for selling pot.

The union alleges that the health center has failed to propose cost-of-living adjustments that keep up with inflation, and that it is understaffed.

The Evanston Land Use Commission voted against a proposed 31-story, 430-apartment residential building in downtown Evanston.

A new Chick-fil-A opening in south Naperville Thursday will be the chain’s first Illinois location to offer only drive-thru and walk-up options.

Here’s a look back at what happened in the Chicago area on Sept. 3, according to the Tribune’s archives.

U.S. employers posted 7.2 million job vacancies in July as the American labor market continues to cool.