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The character 差 evolved from ancient forms depicting hands working with hemp or fibers, originally meaning 'to sort' or 'to arrange.' In bronze inscriptions, it showed two hands processing hemp, conveying the notion of selection and differentiation. By the small seal script period, the structure standardized into its modern form with 左 (left hand) and 工 (work), reflecting the original meaning of hands engaged in careful work that creates distinction. This evolved to encompass meanings of 'difference,' 'discrepancy,' 'error,' and 'to dispatch,' all relating to the fundamental concept of creating or recognizing distinctions through deliberate action. Arrived in Japan: The character 差 likely arrived in Japan during the 5th-6th centuries CE as part of the broader introduction of Chinese writing system through Buddhist texts and cultural exchange. It became integrated into Japanese as kanji with readings 'sa' (difference) and 'sashi' (distinction), appearing in early Japanese documents like the 8th-century Manyoshu poetry collection and Nara-period legal codes.