anchor.diff:    This map allows the corpus to be explored geographically. It organizes metadata for the texts into two information
     layers on a geo-rectified period (1892) map, from the University of Illinois at Urbana-Champaign
     <a href="http://imagesearchnew.library.illinois.edu/cdm/landingpage/collection/africanmaps" target ="_blank">Maps of Africa to
  -    1900</a> collection. <em class="blue">Blue</em> plots the various places of publication, and associates each point
  +    1900</a> collection. Geo-rectification refers to the transformation process by which a map image is adjusted to correspond to a known coordinate system. <em class="blue">Blue</em> plots the various places of publication, and associates each point
     with
     the text(s) published at that location. <em class="red">Red</em> plots the loci of the different target language
     speech
  
positive.code:       }
        window.onload = main;
      </script>
  <% end %>
negative.code: <p>
    The purpose of this map visualization tool is to allow the researcher to explore the corpus through space. No static
    image can ever fully capture the shifting political landscape of colonial Africa. For a more thorough representation
    of Africa’s political borders, conflicts, and demographics, between 1879–2002, please consult the Brown
    University <a href="http://www.brown.edu/Research/AAAH/" target ="_blank">Animated Atlas of African History</a>; or, for a period of
    map of missionary activity in Africa, the <a href="http://imagesearchnew.library.illinois.edu/cdm/ref/collection/africanmaps/id/2478" target ="_blank">Carte des
    Missions Catholique en Afrique (1889)</a>.
  