This article has been reviewed according to Science X's editorial process and policies. Editors have highlighted the following attributes while ensuring the content's credibility: A new historical analysis challenges the received wisdom as to why Chinese characters developed their distinctive square shapes. The work, published in the International Journal of Arts and Technology, argues that their shape resulted from interacting linguistic, technological and cultural factors rather than a single cause.
The researchers looked at the evolution of Chinese writing and distinguished between the linguistic unit represented by a character and the space occupied by its written form. They considered four possible units: phonemes, or individual speech sounds; syllables, or units of pronunciation; morphemes, the smallest units of meaning; and words. Earlier explanations have attributed the square configuration to the semantic structure of Chinese characters, the simplicity of their component shapes or traditional preferences for symmetry and square forms.
This new analysis suggests that none of those factors alone explains the evolution. Indeed, other writing systems also use semantic construction or relatively simple symbols but did not develop a comparable square outline approach. The researchers suggest that the square-shaped writing cells emerged through gradual regularization.
The grouping of graphic components, changes in character structure and practical demands of writing with brushes on materials such as bamboo slips helped establish the consistent shape. Later scribes and then printing reinforced the convention, while cultural preferences may have supported its continuation. Man Dai et al., A new exploration of the causes behind the square-based structure of Chinese character outlines, International Journal of Arts and Technology (2026).
DOI: 10.1504/ijart.2026.157239 BA art history, MA material culture. Former museum editor, paramedic, and transplant coordinator. Editing for Science X since 2021.
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