How to say bookmarks in classical Chinese?
The nicknames for bookmarks in classical Chinese include Yunbi and Yunbian. The ancients believed that putting a proper amount of rue herb in the book to keep a certain concentration of volatile components around the book could kill pests or make them afraid to approach. Because Yuncao is attached to books, other things related to Yuncao have become titles related to books, and Yunqian has also become one of the elegant names of bookmarks.