It was initiated on a provisional basis by the Executive Cities of Mayors for Peace at their meeting in Manchester, UK, in October 2003.
From May 2008 till May 2009, the main focus of the work of the 2020 Vision Campaign has been the signature drive for the Cities Appeal in support of the Hiroshima-Nagasaki Protocol.
By signing the Cities Appeal, Mayors and elected local officials around the world are given the chance to get behind the Hiroshima-Nagasaki Protocol ahead of the formal and final presentation of the results of the international signature drive at the 2010 NPT Review Conference at the United Nations Headquarters in New York.
After two years of hard working starting in the autumn of 2005 and continuing today, all eleven Western Mayors have signed on to the campaign.
This encouraged some legislative action, and the state Republicans brought forth a resolution for nuclear abolition by 2020 which passed in the Massachusetts House and Senate.