『1915　　4. 　5 1921　　1. 　1 1933 　11.　1 1945　　8.　 6 1947 1949　　8.　 6 1953 　11. 14 1962 1964 　12. 22 1965　　7. 28 1966　　7. 11 　　　　 11.　 1 1967 4.10〜8.5 1983　　3.　29 1987　　7.　11 1989　　5.　 1 1989 10. 31〜 1990 　3. 31 1990　　3.　 7 1992　　9.　30 1995　　6.　27 　　　 　　9.　28 1996　 12.　 5 Construction of Hiroshima Prefectural Commercial Exhibition Hall completed. Name changed to Hiroshima Prefectural Products Exhibition Hall. Name changed to Hiroshima Prefectural Industrial Promotion Hall. A-bombed at a distance of 160 meters northwest of the hypocenter.Roof and floor completely destryed by blast and fire. All persons in building killed instantly. Discussion begins regarding whether or not to preserve A-bomb Dome. Design selected for the Peace Memorial Park. General outline of park takes shape with A-bomb Dome on the central axis. Hiroshima Prefecture donates A-bomb Dome to Hiroshima City. Chain-link fence installed around A-bomb Dome; entry prohibited. Eleven peace groups call on Hiroshima City to preserve A-bomb Dome. Study of A-bomb Dome's structural integrity begins. Hiroshima City Council decides to preserve A-bomb Dome. Hiroshima City begins fundraising for preservation of A-bomb Dome. First A-bomb Dome preservation project. Completion of landscaping and preparation of the grounds around A-bomb Dome. A-bomb Dome preservation survey begins. Hiroshima Ctiy begins fundraising for A-bomb Dome. Second A-bomb Dome preservation project. Hiroshima City establishes A-bomb Dome preservation project fund. Completion of first routine survey of A-bomb Dome 's structural soundness（hereafter to be conducted every three years）. Minister for Education designates A-bomb Dome as historical site. Government of Japan nominates A-bomb Dome to World Heritage Commitee. World Heritage Committee decides to register A-bomb Dome as a World Heritage site.』