<http://schema.org/description>
"Mira Dontcheva, a researcher at Adobe Systems, explains how Zoetrope can be used to browse back through a Web page\u2019s history. She demonstrates a few advanced techniques for looking at historic data and shows how to compare several Web pages over time."^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.technologyreview.com/s/416545/back-button-to-the-future/>