A first century AD marble Roman-era bathtub was discovered in Ephesus, Turkey. It is thought to have been for wealthy domestic use. The bathtub was later repurposed as a fountain trough, with holes cut to allow water to flow in from above and out from below.
https://www.aa.com.tr/en/turkiye/roman-era-marble-bathtub-male-statue-unearthed-at-ancient-ephesus-in-turkish-aegean-region/3772011