This article examines the conflicts in writing the imperial modern history of China among various stakeholders, particularly Chinese and American historians, and their dealing with a set of personal documents of Sir Robert Hart, Inspector-General of the Chinese Maritime Customs Services (CMCS) during the Qing period. This set of documents is called “Hart Industry” and contains Hart's personal papers and seventy-seven volumes of diaries, among others. Revealing the imperial Inspector-General's view on “westernization” in modern China, the Hart Industry played a key role in the development of the history of modern China throughout the twentieth century. From around 1957 until 1995, the diaries became a source of a highly politicized academic debate between Chinese Communist historians of the People's Republic of China and western historians of the Hart Industry. By providing a “study of studies” on the historiography of the colonial modern history of China, this article argues that the Hart diaries were critical to historians’ understanding of their own academic discourse.
