Sportimonium opened to the public in 2004. This was the result of many years of groundwork and collecting. It all began with a research project at KU Leuven during the 1970's. The seeds were sown for broad research into sporting history in Belgium and the first objects were collected.
The collection is continually being expanded, including through acquisitions of private collections, donations from famous sportspeople and by the archives of sports journalists and federations. The impressive collection led to Sportimonium being included in the select circle of Olympic Museums.