As a governance model, the historical changes of "small country and few people" (1) and "small country and few people". The feudal city-state has two boundaries, the inner circle is the city wall, the outer circle is the government, and the inner side of the city wall is called the "country". The whole city-state territory incorporated into the government wall is also a country in a broad sense. 1] In any case, the "country" among "small countries and few people" is by no means modern Europe.