2. "Yan Ti" was created by Yan Zhenqing, a calligrapher in the Tang Dynasty. Together with Liu Gongquan, they are called "Yan Liu" and "Yan Liu Jin Gu". In the history of calligraphy, Yan Zhenqing created a unique realm of calligraphy with "Yan Ti". Spirituality is excellent, and the realm is natural and magnificent; It is also cast with a strong soul, and the realm is natural and vigorous; It was also born with its rich people. The realm is naturally broad and powerful.