Excavations made in Pompeii that stayed under ashes when Vesuvius Volcano exploded, revealed bath used by Romans. It is understood that those baths are not only used for cleanness but also for pleasure and entertainment. Entrance doors of nobles and slaves and places they bathed were separated. There were also steam bath places, cold and warm water pools in Roman baths.
Ottomans conquered Istanbul physically but Byzantine, who reflected rich cultural influence inherited from Romans, conquered Ottomans with their baths like many other things. In the most magnificent period of empire, there was always one bath only for women at certain days of the week with hot and cold baths, fountains, marble rooms with dome in each district of the city.