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The musical Chicago is based on a play of the same name by reporter and playwright Maurine Dallas Watkins, who was assigned to cover the 1924 trials of accused murderers Beulah Annan and Belva Gaertner for the Chicago Tribune.
As of October 13, 2015, 70 episodes of Chicago Fire have aired, currently airing the fourth season.rom Wikipedia, the free encyclopedia. Chicago Fire is an American television drama created by Michael Brandt and Derek Haas, who serve as executive producers alongside Joe Chappelle, Peter Jankowski, Danielle Gelber, Matt Olmstead and Dick Wolf. The series, which premiered on October 10, 2012, airs on NBC.