The Book of Han, Hanshu or History of the Former Han Dynasty (simplified Chinese: 汉书 or 前汉书; traditional Chinese: 漢書 sometimes, 前漢書; pinyin: Qián Hànshū; Wade–Giles: Ch'ien Han Shu) is a classical Chinese history finished in AD 111, covering the history of China under the Western Han from 206 BC to 25 AD. Thus it is also sometimes called the Book of Former Han. The work was composed by Ban Biao, Ban Gu, and Ban Zhao. A second work, the Book of the Later Han covers the Eastern Han period from 25 to 220, and was composed in the fifth century by Fan Ye (398–445). Various scholars have estimated that the earliest material covered in the book dates back to between 206 and 202 BCE. The book also contains the first written historical mention of Japan.
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