“民族－国家”（ｎａｔｉｏｎ－ｓｔａｔｅ）①理论或理念，是西欧族际互动关系和族际政治经验的产物。自公元４７６年西罗马帝国崩溃后，西欧的民族政治历史可分为３个阶段：一是６－１１世纪封建王国的割据时代；二是１２－１５世纪从封建王国向民族－国家演变的过渡时代； The “nation-state” theory or idea is a product of the inter-ethnic relations and ethnic political experience in Western Europe. After the collapse of the Western Roman Empire in 476 CE, the history of ethnic politics in Western Europe can be divided into three stages: the first is the era of the feudal kingdoms of the 6-11 century; the second is the transition of the 12th-15th centuries from the feudal kingdom to the nation-state era;