The "oldest" country varies by whether you measure it by continuous civilization, cultural history, or modern statehood. Using the date of the earliest known organized government or unified state, historical consensus from the World Population Review recognizes these 20 oldest countries:
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Iran: c. 3200 BCE (Origins of the Proto-Elamite civilization)
Egypt: c. 3100 BCE (Unification of Upper and Lower Egypt)
Vietnam: c. 2879 BCE (The Hồng Bàng Dynasty)
Armenia: c. 2492 BCE (Traditional founding of the Armenian nation)
North Korea: c. 2333 BCE (Mythical founding of Gojoseon)
China: c. 2070 BCE (Establishment of the Xia Dynasty)
India: c. 2000 BCE (Indus Valley Civilization and Vedic period)
Georgia: c. 1300 BCE (The Diauehi and Colchis tribes)
Palestine: c. 1200 BCE (Historical Canaanite settlements)
Sudan: c. 1000 BCE (Kingdom of Kush)
Ethiopia: c. 980 BCE (Rise of the D'mt Kingdom)
Afghanistan: c. 678 BCE (Median Empire)
Greece: c. 800 BCE (Ancient Greek city-states and unification)
Japan: c. 660 BCE (Mythical founding by Emperor Jimmu)
Mongolia: c. 209 BCE (The Xiongnu Empire)
Somalia: c. 200 BCE (Land of Punt trading centers)
San Marino: 301 CE (Continuous sovereign republic)
France: 843 CE (Treaty of Verdun establishing West Francia)
Bulgaria: 681 CE (Establishment of the First Bulgarian Empire)
Portugal: 1143 CE (Treaty of Zamora with intact historical borders)
“最古老”的国家的定义因衡量标准而异，取决于你以连续文明、文化历史还是现代国家形态来衡量。根据已知最早的有组织政府或统一国家的建立日期，世界人口评论的历史共识认定以下20个国家是最古老的：
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伊朗：约公元前3200年（原始埃兰文明的起源）
埃及：约公元前3100年（上下埃及的统一）
越南：约公元前2879年（红帆王朝）
亚美尼亚：约公元前2492年（亚美尼亚民族的传统建立）
朝鲜：约公元前2333年（神话中古朝鲜的建立）
中国：约公元前2070年（夏朝的建立）
印度：约公元前2000年（古代）公元前2000年（印度河流域文明和吠陀时期）
格鲁吉亚：约公元前1300年（迪亚韦希人和科尔基斯人部落）
巴勒斯坦：约公元前1200年（迦南人历史定居点）
苏丹：约公元前1000年（库什王国）
埃塞俄比亚：约公元前980年（达姆特王国的兴起）
阿富汗：约公元前678年（米底王国）
希腊：约公元前800年（古希腊城邦及其统一）
日本：约公元前660年（神武天皇的神话建国）
蒙古：约公元前209年（匈奴帝国）
索马里：约公元前1000年（古希腊）公元前200年（蓬特贸易中心所在地）
圣马力诺：公元301年（持续主权共和国）
法国：公元843年（凡尔登条约，建立西法兰克王国）
保加利亚：公元681年（保加利亚第一帝国建立）
葡萄牙：公元1143年（萨莫拉条约，保持历史边界）
The "oldest" country varies by whether you measure it by continuous civilization, cultural history, or modern statehood. Using the date of the earliest known organized government or unified state, historical consensus from the World Population Review recognizes these 20 oldest countries:
HowStuffWorks
+3
Iran: c. 3200 BCE (Origins of the Proto-Elamite civilization)
Egypt: c. 3100 BCE (Unification of Upper and Lower Egypt)
Vietnam: c. 2879 BCE (The Hồng Bàng Dynasty)
Armenia: c. 2492 BCE (Traditional founding of the Armenian nation)
North Korea: c. 2333 BCE (Mythical founding of Gojoseon)
China: c. 2070 BCE (Establishment of the Xia Dynasty)
India: c. 2000 BCE (Indus Valley Civilization and Vedic period)
Georgia: c. 1300 BCE (The Diauehi and Colchis tribes)
Palestine: c. 1200 BCE (Historical Canaanite settlements)
Sudan: c. 1000 BCE (Kingdom of Kush)
Ethiopia: c. 980 BCE (Rise of the D'mt Kingdom)
Afghanistan: c. 678 BCE (Median Empire)
Greece: c. 800 BCE (Ancient Greek city-states and unification)
Japan: c. 660 BCE (Mythical founding by Emperor Jimmu)
Mongolia: c. 209 BCE (The Xiongnu Empire)
Somalia: c. 200 BCE (Land of Punt trading centers)
San Marino: 301 CE (Continuous sovereign republic)
France: 843 CE (Treaty of Verdun establishing West Francia)
Bulgaria: 681 CE (Establishment of the First Bulgarian Empire)
Portugal: 1143 CE (Treaty of Zamora with intact historical borders)