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Ouyang Xun (557–641 CE) was one of the most influential calligraphers of the early Tang Dynasty, renowned for his precise, disciplined, and structurally rigorous style of regular script (kaishu). His masterpiece, the Jiucheng Palace Liqueur Spring Inscription (Jiucheng Gong Li Quan Ming), was engraved in 632 CE to commemorate the discovery of a sweet…