This CRUMBEL project studies the collections of cremated bone found in Belgium dating from the Neolithic to the Early-Medieval period using state of the art analytical and geochemical analyses. Recording the Belgian collections in a database including as much osteoarchaeological information represents a crucial part of this project. Until now the dominance of cremation as funeral practice between 3000 BC and 700 AD in Northern Europe led to limited information on migrations and living conditions. CRUMBEL will greatly improve our current understanding of how people lived in Belgium.