With over 3 million documents, PRONI is the only archive in the British Isles to hold such a diverse collection of official and private documents. In 2011, PRONI moved into a new purpose-built home in the Titanic Quarter of Belfast. A Century of Change, Conflict and Transformation was launched to mark this event. As well as telling the story of Northern Ireland through the archive's documents, the exhibition aimed to encourage people to think about both the purpose and future of archives.