The Neolithic and Bronze Age remains from Ohlsdorf, a modern cemetery in Hamburg, attest to the repeated utilisation of the terrain as a burial site. Of special importance is the find of a fully intact collared flask. Chemical analyses revealed that some of these flasks were filled with essential oils or sulphur. The use of sulphur in medicine has been a tradition since ancient times, its healing properties must have been known even earlier. Therefore, collared flasks are regarded as the oldest medicine bottles in the world.