330 North Wabash • 330 North Wabash Avenue, Chicago • Chicago Architecture Info

1969: Construction began.
1971: Construction ended.
1989: Artist David Mooney backlit every one of the building's windows in red, white, or blue for a few days in the summer.
1996: IBM sold this building to the Blackstone Group.
2005: IBM moved out of its namesake building
January 4, 2005: Crain's Chicago Business reported that the owners of this building were considering converting it to condominiums.
2006: IBM moved to the Hyatt Center.
2007: An idea was floated to convert the top 38 stories of this building into a hotel.
2007: This building was named a Chicago landmark
February 6, 2008: This building was named a Chicago landmark.
March, 2008: 12 floors of this building were sold to a hotel company for $46 million.
2010: This building was added to the National Register of Historic Places
December, 2010: Floors two through 13 were sold to Langham Hotels International
September, 2013: This building was renamed AMA Plaza, after the American Medical Association moved its headquarters here