Hua–Yi distinction

During the late Zhou dynasty, the inhabitants of the Central Plains began to make a distinction between Hua and Yi (Chinese: 華夷之辨; pinyin: huáyí zhībiàn), referred to be some historians as the Sino–barbarian dichotomy. They defined themselves as part of cultural and political region known as Huaxia, which they contrasted with the surrounding regions home to outsiders, conventionally known as the Four Barbarians (literally, "four Yi"). Although Yi is usually translated as "barbarian", other translations of this term in English include "foreigners", "ordinary others", "wild tribes" and "uncivilized tribes". The Hua–Yi distinction asserted Chinese superiority, but implied that outsiders could become Hua by adopting their culture and customs. These concepts were not unique to Ancient China, but were also applied by the Vietnamese, Japanese, and Koreans, all of whom considered themselves at one point in history to be the "Central Kingdom" in imitation of China.