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A toilet or lavatory is a plumbing fixture and
disposal system primarily intended for the disposal of the bodily
wastes: urine and fecal matter. The word "toilet" can be used to refer
to the fixture itself or to the room containing the fixture, especially
in British English. In North American English the word "toilet" refers
solely to the fixture itself and not to the room that contains it, thus
asking for the "toilet" would seem indecent. Instead, the euphemisms
bathroom, rest room, washroom or men's room / women's room / loo are
preferred. The modern flush toilet system was first designed in 1596 by
Sir John Harington[1]; however, a form of flush toilet was used in the
Indus Valley Civilization[2]. The cities of Harappa [3] and
Mohenjo-daro[4] had flush toilets attached to a sophisticated sewage
system.
The flush toilet was originally invented in the
Indus Valley Civilization. The modern flush toilet was developed by Sir
John Harrington, but due to slurs published by himself and being
ridiculed in England for his invention, his toilet was never
mass-produced.
Then, Alexander Cummings, a watch-maker, patented his design for a flush
toilet, which was the basis for the modern sitting toilet that a large
part of the human population uses today.
There are also many different ways to clean oneself after using the
toilet. A lot depends on national mores and local resources. The most
common choice in the Western world is toilet paper, sometimes used in
conjunction with the bidet. (See Toilet paper and Anal cleansing for a
discussion of the many alternatives used through history and in
different cultures.) In the Middle East and some countries in Asia, and
South Asian countries such as India, the custom is to use water, either
with or without toilet paper. Traditionally, the left hand is used for
this, for which reason that hand is considered impolite or polluted in
many eastern countries.
Some toilet areas (otherwise known as "stalls"), are specially adapted
for people with disabilities. These are wide enough to allow the entry
by a person in a wheelchair, and often feature hand-holds bolted to the
wall, enabling the person to maneuver onto the toilet, if necessary.
The most common type of toilet in modern cities is the flush toilet, in
which water takes away the waste through sewers to a waste treatment
plant. In rural areas where sewers are not practical, septic tanks may
be installed instead.
The most common design in first-world countries is the or sitting
toilet. Many other countries use the squat toilet, especially in public
restrooms, finding it both cheaper to install and more hygienic to
maintain.
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