As work and labour relations deeply influence how we live, the mission of the International Institute of Social History (IISH) is to explore how these relations develop globally over time. In order to be able to conduct this historical research and support other researchers, we collect archives and data from all over the world. Established in 1935, the IISH is one of the world's leading research institutes on social history. The IISH is an institute of the Royal Netherlands Academy of Arts and Sciences (KNAW).