When was China's Preface to Lanting Collection?

Preface to Lanting is the representative work of Wang Xizhi, a calligrapher in the Eastern Jin Dynasty. It is the most influential and widely circulated calligraphy work in China's calligraphy history. It is a model that emperors, ordinary people and many calligraphy lovers love, cherish and write temporarily. Known by the world as "the best calligraphy in the world", it is highly praised by emperors in past dynasties, and it is a monument in the history of calligraphy art in China. Its profound calligraphy attainments are unparalleled at all times and in all countries. His prose is full of emotion and scenery, history and ambition, and it also occupies an important position in the history of literature. It is a swan song in the history of calligraphy art in China for thousands of years, and it has nourished generations of calligraphers.