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August 1947 | First Peace Declaration delivered at the first Peace Memorial Ceremony |
August 1949 | Hiroshima Peace Memorial City Construction Law promulgated and enacted |
August 1952 | Cenotaph for the A-bomb Victims (Memorial Monument for Hiroshima, City of Peace) unveiled |
August 1955 | Hiroshima Peace Memorial Museum opens |
March 1957 | A-bomb Survivors Medical Law passed (effective April 1) |
July 1966 | Resolution to preserve the Atomic Bomb Dome adopted by City Council |
August 1967 | First preservation work on the A-bomb Dome finishes (Second time in March 1990, third time in March 2003, fourth time in July 2016) |
May 1968 | A-bomb Survivors Special Measures Law passed (effective September 1) |
September 1968 | First protest letter against nuclear testing sent |
April 1976 | Hiroshima Peace Culture Foundation established |
September 1983 | Permanent A-bomb exhibition unveiled at the UN headquarters in New York |
July 1985 | Resolution declaring Hiroshima a “Peace City for Nuclear Weapons Abolition” adopted by City Council |
August 1985 | First General Conference of the World Conference of Mayors for Peace through Inter-city Solidarity held (held once every four years thereafter. In August 2001, the organization renamed “Mayors for Peace”) |
August 1986 | Peace Summit in Hiroshima held (International Peace Symposium held annually thereafter) |
June 1992 | UN Conference on Disarmament Issues in Hiroshima held (also held in 1994, 1996, 2015 and 2017) |
May 1993 | A-bombed Buildings Preservation and Inheritance Project starts |
December 1994 | Law Pertaining to the Support of the A-bomb Survivors passed (effective July 1) |
July 1995 | A-bomb exhibition held at American University in the US (held in and outside of Japan every year thereafter) |
December 1996 | A-bomb Dome designated as a World Heritage site |
April 1998 | Hiroshima Peace Institute established at Hiroshima City University |
November 2003 | 2020 Vision Campaign launched by Mayors for Peace |
May 2005 | Call for nuclear weapons abolition by 2020 made by mayors of Hiroshima and Nagasaki at the NPT Review Conference |
July 2006 | Peace Memorial Museum Main Building designated National Important Cultural Asset |
November 2011 | Permanent A-bomb exhibition unveiled at the UN Office at Geneva |
January 2012 | First Japanese Member Cities Meeting of Mayors for Peace held |
April 2012 | Policies Regarding the Transformation and Honoring of the Paper Cranes put into action |
July 2012 | Training program for official A-bomb Legacy Successors initiated (Their activities started In April 2015) |
April 2014 | Non-Proliferation and Disarmament Initiative (NPDI) 8th Ministerial Meeting held in Hiroshima |
August 2015 | Meeting of the Comprehensive Nuclear-Test-Ban Treaty (CTBT) Group of Eminent Persons (GEM) held |
November 2015 | Permanent A-bomb exhibition unveiled at the UN Office at Vienna |
April 2016 | G7 Foreign Ministers’ Meeting in Hiroshima held |
May 2016 | US President Barack Obama visits Hiroshima |
November 2017 | First meeting of Group of Eminent Persons for Substantive Advancement of Nuclear Disarmament held |
April 2019 | Hiroshima Peace Memorial Museum Main Building re-opens after renovation (East Building re-opened in April 2017) |
November 2019 | Pope Francis visits Hiroshima |
December 2022 | First meeting of the International Group of Eminent Persons for a World without Nuclear Weapons held |
May 2023 | G7 Hiroshima Summit held |