The Shih King (the Book of Poetry) is the oldest existing collection of Chinese poetry, comprising 305 works dating from the 11th to 7th centuries BC. It is one of the "Five Classics" traditionally said to have been compiled by Confucius, and has been studied and memorized by scholars in China and neighboring countries over two millennia. It is also a rich source of chengyu that are still a part of learned discourse and even everyday language in modern Chinese.