Edepụtara mwepụ ụjọ n'ime nnwereonwe dịka ikike ruuru mmadụ dịka nkpebu mmadụ Nwereonwe zuru uwa. Na Jenụwarị 6, 1941, Onye isi ala United States Franklin D. Roosevelt kpọrọ ya otu n'ime "nnwereonwe anọ" na ọnọdu otu nke obodo ya, mechara kpọọ ya 'Okwu Nnwereonwe Anọ.' N'okwu ya, Onye isi ala Franklin D. Roosevelt wepụtara nnwereonwe site na atulegwu dị ka ndị a: "Nke anọ bụ nnwereonwe site na atulegwu, bụ nke, sụgharịrị n'asụsụ ụwa, pụtara nbelata ngwa ọgụ ụwa niile otu a na n'ụzọ zuru oke nke na mba ọ bụla agaghị enwe ike ime ihe ọ bụla megide onye agbata obi ya ọ bụla n'ụwa ebe ọ bụla. " Nnwereonwe anọ nke Roosevelt guzobere ogidi dị mkpa nke nkpebu mmadụ nwereonwe zuru uwa. nke United Nations General Assembly nakweere na December 10, 1948. Nnwere onwe pụọ n’egwu ka ekwutara n’okwu mmalite nke Nkwuwa okwu ahụ. Na 1943, onye na-ese ihe Norman Rockwell kere Nnwereonwe site na atulegwu, n’ime usoro eserese ya anọ akpọrọ nnwere onwe anọ .