linguistic:paraphrasing, information:filtering, stylistic:tone, information:highlighting
Classical and vernacular written forms

The complex relationship between spoken and written Chinese is an example of diglossia: as spoken, Chinese varieties have evolved at different rates, while the written language used throughout China changed comparatively little, crystallizing into a prestige form known as Classical or Literary Chinese. Literature written distinctly in the Classical form began to emerge during the Spring and Autumn period. Its use in writing remained nearly universal until the late 19th century, culminating with the widespread adoption of written vernacular Chinese with the May Fourth Movement beginning in 1919.