By extracting and analyzing historical OpenStreetMap data, we can see the story of contributions to the dataset over time. The number of edits, number of contributors, geographic concentration of contributions, and pace of change are all accessible for analysis and visualization.
Moscow
3,613 contributors - 1,000,898 features - May 2008 to August 2014
Berlin
6,011 contributors - 1,447,791 features - June 2007 to August 2014
Baghdad
154 contributors - 38,090 features - December 2006 to July 2014
London
6,700 contributors - 1,887,638 features - March 2006 to August 2014
Juba
188 contributors - 82,368 features - November 2009 to August 2014