The age of the oldest known toilets, simple pits lined with ceramic tubes found in ancient Mesopotamian ruins.
Numbers in the News: Toilets
November 19 is World Toilet Day. The day is meant to raise awareness about the importance of sanitation. Check out these facts and figures about toilets.
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5,000 YEARS
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1.6 GALLONS
The amount of water used per flush of a modern standard toilet.
$23 MILLION
How much it cost to create a toilet that worked in low gravity on the International Space Station.
3.6 BILLION
The estimated number of people who don’t have access to flush toilets.
1 IN 3
As many as 1 in 3 schools around the world do not have adequate toilets.
THINK ABOUT IT: Why is it important for people to have access to proper sanitation?
SOURCES: INTERNATIONAL ASSOCIATION OF CERTIFIED HOME INSPECTORS, UNICEF, NASA, EPA, NATURE (2016)
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