silent films <div class="panel-heading"> <h5 class="panel-title">Motion pictures made without a photographic or magnetic sound track carried on the physical medium of the film itself.</h5> </div> <div id="collapseNote1" class="panel-collapse collapse in"> <div id="note_id1810" class="panel-body"> <p>Source: Art &amp; Architecture Thesaurus</p> <p>http://vocab.getty.edu/page/aat/300252071</p> </div> </div>