As Tribune photo editor Marianne Mather looked through the Tribune’s photo archive she realized that much of the city’s history has been intertwined with the Walgreens chain.

2004: Target Corp. announced it was putting Chicago retailing icon Marshall Field’s up for sale. Field’s was sold to May ...

(Carl Hugare/Chicago Tribune) Here’s a look back at what happened in the Chicago area on March 7, according to the Tribune’s archives. Is an important event missing from this date? Email us.