The application concerns a historical research project on the activities of regimental farriers and veterinarians in 19th century Sweden. Horses were a central part of the 19th century infrastructure, not least in the military, before mechanization finally took over in society. The horse was a resource that to a large extent provided the conditions for many activities, but has nevertheless been largely forgotten in historiography. The first trained veterinarians in Sweden were often employed by regiments and could also serve as farriers, but we do not know enough in detail about their activities. At the beginning of the 19th century, these professions were not entirely distinct from each other. The aim is to deepen the picture of how the military activities shaped the development of the farrier and veterinary professions and also how the interaction with the surrounding civilian society worked, including the relationship with the medical profession. The 19th century saw profound social, technological and scientific (medical) changes in society. Military activities still permeated society to a large extent, both at local and national level. The research project therefore contributes to linking military history with cultural and medical history. This knowledge is needed, partly to understand how a particular activity, its practice and specific needs, shape the development of knowledge and society, and partly to be able to reconstruct and understand how boundaries and interfaces between professions and different disciplines arise.