Tucson Commemoration of the 50th Anniversary of the 1963 March on Washington July 28, 2013 by AZ BlueMeanie Posted by AzBlueMeanie: Announcement from the Tucson-Southern Arizona Black Chamber of Commerce and cosponsors: More events and contact information below the fold. Share this:FacebookTwitterEmailWhatsAppRedditPinterestMorePrintPocketTumblrLinkedIn