Zhang Zhi (calligrapher)
Zhang Zhi (simplified Chinese: 张芝; traditional Chinese: 張芝; pinyin: Zhāng Zhī; Wade–Giles: Chang Chih, died 192), courtesy name Boying (伯英), was a Chinese calligrapher during the Han dynasty. Born in Jiuquan, Gansu, he was a pioneer of the modern cursive script, and was traditionally honored as the Sage of Cursive Script (草聖). Furthermore, he is known as one of the Four Talented Calligraphers (四賢) in Chinese calligraphy.