Lu Xun was a highly influential Chinese writer and critic in the early 20th century. He is considered one of the most important Chinese writers of that period. Some of his key accomplishments include: - He lived from 1881 to 1936. - He was an important critic who wrote essays on Chinese history, traditions, and modern society. - He achieved great success in 1918 with the publication of his short story "Diary of a Madman", which was one of his first works.