Ka cika wannan magana: Jihar New York ce ta ba da umurnin gina wannan abin tunawa kuma an keɓe shi a ranar 6 ga Satumba, 1907 don a tuna da William McKinley, Shugaban Amirka na 25, wanda aka kashe a shekara ta
An harbe shi yayin da yake halartar baje kolin Pan-American a Buffalo a ranar 6 ga Satumba, 1901. Daniel H. Burnham ya rinjayi tsarin tsara abin tunawa ta hanyar ba da shawara cewa ya kamata a gina wani obelisk don kira ga muhimmancin da muhimmancin abin tunawa. Cikakken sabuntawa ya faru a cikin 2017 sakamakon yanayin muhalli da ke lalata amincin abin tunawa.