Why can written Chinese provide a common link among people from different regions of China?

Written Chinese serves as a powerful unifying force across China because it utilizes a logographic script rather than an alphabetic-phonetic system. Because these characters represent units of meaning (morphemes) rather than specific sounds, they are not tied to the pronunciation of any single dialect.12

This system allows people who speak mutually unintelligible regional languages or dialects to communicate through a shared written medium, much like how numerical symbols (1, 2, 3) are understood across different languages despite being spoken differently. Because the script does not primarily indicate sounds, it can be read by speakers of diverse varieties of Chinese—such as Mandarin, Wu, or Cantonese—without damaging the intended meaning of the text.234

Consequently, while spoken varieties of Chinese differ significantly, the written language has historically functioned as a common asset, perpetuating cultural unity among the Han Chinese people and across geographically diverse regions.2