- published: 27 Jan 2015
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Sentō (銭湯?) is a type of Japanese communal bath house where customers pay for entrance. Traditionally these bath houses have been quite utilitarian, with one large room separating the sexes by a tall barrier, and on both sides, usually a minimum of lined up faucets and a single large bath for the already washed bathers to sit in among others. Since the second half of the 20th century, these communal bath houses have been decreasing in numbers as more and more Japanese residences now have baths. Some Japanese find social importance in going to public baths, out of the theory that physical proximity/intimacy brings emotional intimacy, which is termed skinship in Japanese. Others go to a sentō because they live in a small housing facility without a private bath or to enjoy bathing in a spacious room and to relax in saunas or jet baths that often accompany new or renovated sentōs.
Another type of Japanese public bath is onsen, which uses hot water from a natural hot spring. They are not exclusive: A sentō can be called an onsen if it derives its bath water from naturally heated hot springs. A legal definition exists that can classify a public bathing facility as sentō.
Public baths originated from a communal need for cleanliness. The term public may confuse some people, as some types of public baths are restricted depending on membership, gender, religious affiliation, or other reasons. As societies have changed, public baths have been replaced as private bathing facilities became more commonly available. Public baths have also become incorporated into the social system as meeting places. As the title suggests public bathing does not refer only to bathing. In ancient times public bathing included saunas, massages and relaxation therapies. Members of the society considered it as a place to meet and socialize. Public bathing could be compared to the spa of modern times.
The earliest public baths are found in the ruins in of the Indus Valley Civilization. According to John Keay, the "Great Bath" of Mohenjo Daro in present-day Pakistan was the size of 'a modest municipal swimming pool', complete with stairs leading down to the water at each one of its ends. The bath is housed inside a larger—more elaborate—building and was used for public bathing. the Great Bath and the house of the priest suggest that the Indus had a religion.