Chinese is a highly complex language with internal variation unprecedented in most other languages. Yet, that does not mean Chinese is unique in the sense that it cannot be compared to other languages and new concepts need to be introduced for the description of it. This paper is dedicated to the question of how to apply the notion of…

The Han sphere, including Vietnam, Korea, Japan, Taiwan and China, adopted Han characters and classical Han writing as the official written language before the 20th century. However, great changes came with the advent of the 20th century. After World War II, Han characters in Vietnam and Korea were officially replaced by the romanised "Chu…