Luoyang. According to knowledgeable people, Luoyang was the capital of the Zhou Dynasty, and it was also the place where the laws and regulations and the culture of rites and music were concentrated. The ritual and music system and literature classics of the Zhou Dynasty are well preserved in Luoyang, and historical classics, academic research institutions and libraries are also committed to collecting, protecting and studying ancient documents, including the ritual and music system and literature classics of the Zhou Dynasty. With the help of document protection and digital technology, these institutions and libraries strive to preserve and inherit ancient cultural heritage.