Presently, RWTH Aachen University with its more than 90 years of research in the field of work science (incl. industrial engineering and ergonomics) can look back on a period in which German society underwent a large number of drastic changes. Whilst the focus of the research was always shaped by the dominant zeitgeist, it has also risen continuously to the ever-evolving challenges of interdisciplinary research, whilst  developing a unique set of methods. However, the impact that the scientists involved had on the research profile at IAW was just as decisive.