The Hanyu Da Cidian (traditional Chinese: 漢語大詞典; simplified Chinese: 汉语大词典; pinyin: Hànyǔ Dà Cídiǎn; lit. 'Comprehensive Chinese Word Dictionary') is the most inclusive available Chinese dictionary. Lexicographically comparable to the Oxford English Dictionary, it has diachronic coverage of the Chinese language, and traces usage over three millennia from Chinese classic texts to modern slang. The chief editor Luo Zhufeng (羅竹風) (1911–1996), along with a team of over 300 scholars and lexicographers, started the enormous task of compilation in 1979. Publication of the thirteen volumes began with first volume in 1986 and ended with the appendix and index volume in 1994.