Introduction to Yan Qin’s Memorial Monument: Yan Qin’s Ceremony Monument. The original stele was erected in the 14th year of the Dali calendar of the Tang Dynasty (779) and was written by Yan Zhenqing. The full text is more than 1,600 words. The pen is vigorous and simple, showing the graceful and vigorous aesthetic style of Tang Kai script. It is a representative work of regular script.