→1956: First National adds a 14-story annex immediately east of the original tower.

→1974: First National adds a second 14-story building facing Broadway.

→1986: First National Bank fails and operations are taken over by First Interstate Bank. The office complex and adjoining Main Street Parking Garage end up in the ownership of 36 financial institutions following the bank's failure.

→1993: A series of bank mergers leads to Boatman's Bank as the last anchor tenant in the tower's Great Banking Hall. The bank moves across the street to Leadership Square.

→1994: Local investors John Kennedy and Michael Samis buy First National Center for $827,000 and the adjoining Main Street Parking Garage for $3.2 million.

→1998: Kennedy and Samis end discussions with city to use tax credits for a renovation; they give the office complex to Feed The Children and retain ownership of the adjoining Main Street Parking Garage.

→1999: Joel Hoffman and Mitchell Wolff buy First National Center for $5 million from Feed The Children. The pair promise to raise occupancy and renovate the property. The pair begin asbestos removal from the long-vacant east tower, but fail to deliver on many of the other promised improvements.

→2006: Partnerships led by California investor Aaron Yashouafar buy First National Center for $21 million.

→2009: Capmark Financial Group, one of the nation's largest commercial lenders and holder of the First National mortgage, files for bankruptcy. First National Center manager Emily Dobson-Timm reports the bankruptcy will have no effect on the property and that all loans are current.

→June 18, 2010: Capmark Bank petitions for foreclosure on First National Center.