Across antiquity, Roman engineers impressed with water systems, roadwork, and sewers also faced questions about personal cleanliness. Rather than relying on rag, paper, or plain water alone, they experimented with a reusable solution that paired a sponge with a stick. This device, known as the tersorium (or xylospongium in Greek), attached a sea sponge to a wooden staff and could be used at public latrines in bathhouses and other civic spaces. It was often rinsed in the flowing water of the latrine or soaked in a saline or vinegar solution to refresh it between uses.
Historical accounts suggest that the tersorium might not have been a private implement. Public facilities sometimes provided this shared tool, raising questions about sanitation practices in crowded Roman environments. The emphasis on reach and absorbency made the sponge-on-a-stick seem practical, but the communal aspect invites debate about hygiene in ancient settings.
Alternative interpretations emerge from scarce textual evidence. Some scholars argue that the tersorium’s primary role could have been as a toilet brush rather than a personal cleansing aid. Austrian archaeologist Gilbert Wiplinger questions whether authors like Seneca or Martial clearly describe the sponge being used for individual hygiene, suggesting a less intimate function. In contrast, material remnants from places like Herculaneum hint at varied usage. Fragments of cloth discovered in ancient septic remains imply fabric might have been common, while shards of smooth-edged pottery (pessoi) could have served as abrasive substitutes. Taken together, these clues point to a spectrum of practices rather than a single method.
As you consider the ancients’ approach to bathroom habits, remember how different materials—ranging from sponges to cloth and pottery—could have coexisted in Roman daily life. The takeaway remains: modern conveniences, including toilet paper and bidets, are luxuries that our predecessors did not always enjoy.
