The IISH Global Labour History approach, first formulated in 1999 by Jan Lucassen and Marcel van der Linden, shifted the focus of our research agenda and that of many other labour historians. We changed our perspective from a predominantly national approach towards labour history to a transnational and transcontinental comparison. We no longer focused on the nineteenth- and twentieth-century history of white, male factory workers but began to examine all forms of work and all types of workers, globally and over the last five hundred years.