Historians in the 19th-century were not the first to discover the importance of source materials kept in archival depositories. More than their predecessors, however, scholars working in the historical discipline that the 19th century saw emerge tended to equate professional historical knowledge with knowledge based on primary source research, that is, practically speaking, on knowledge gained from source material that was usually kept in archives. While previous scholarship had paid ample attention to the methods that 19th-century historians employed for the (...) study of such archival material, to the epistemologies they developed in tandem with these methods and to the institutions they created for the study of archival records, this special issue explores the influence that archives, in a classic, institutional sense, exerted on the practices of 19th-century historiography. How did the archival turn affect historians’ working manners? How contested was this archival research imperative, with its underlying autopsy principle? And how did it spread geographically, in and outside Europe? (shrink)