What is the first running script and the first regular script in the world?

The best running script in the world is the Preface to Lanting written by Wang Xizhi, a calligrapher in the Eastern Jin Dynasty, which has been called the best running script in the world by calligraphers in previous dynasties. The calligraphy of Preface to Lanting is exquisite. The language of Lanting Preface is fresh and beautiful. The artistic conception of Preface to Lanting is far-reaching. Based on these points, Preface to Lanting has been recognized by everyone.

The best regular script in the world refers to Yan Zhenqing's Magu Mountain Xiantan. In the sixth year of the Tang Dynasty, Yan Zhenqing, a great calligrapher, visited Magu Mountain and wrote the Fairy Altar of Magu Mountain, the full name of which is Magu Mountain Fairy Altar in Nancheng County, Fuzhou in the Tang Dynasty. This is a monument in the history of China's calligraphy, a masterpiece of Yan Zhenqing's calligraphy, and is praised as "the best regular script in the world" by later generations.