Anniversary celebrations provide archivists and librarians with many unique opportunities to build public support for their programs. Archivists, in particular, are expected to be a resource for such events. Handled adroitly, anniversary programming can offset the “dusty shelf” stereotype that frustrates many professionals. Moreover, resource allocators planning an anniversary are likely to look to their archives for ideas and special projects, initiatives that may result in additional financial and staffing resources. Describing the positive public relations value of anniversaries, archivist Tim Ericson has gone so far as to suggest “The Archivist's First Law of Outreach”:

Human beings are unable to resist celebrating any anniversary divisible by twenty-five.