Wikimania
Wikimania 2012 was held July 12–15 2012 at The George Washington University in Washington, DC. There were over 1400 attendees from 87 countries. In addition, the U.S. Department of State, in conjunction with Wikimania 2012, hosted a conference labeled  Tech@State:Wiki.Gov which focused on "Collaborative knowledge and the use of wikis in the public sector".