According to the United Nations, 3.6 billion people live without safe sanitation: This is a full-blown global sanitation crisis, says the UN. Without proper facilities, diseases spread more easily and drinking water can become polluted, causing hundreds of thousands of deaths each year.
In ancient Rome, people often socialized in public toilets. The toilets were designed for mass use, allowing 50 to 60 people at a time, and business matters were discussed while on the toilet, leading to the expression 'to do one's business.'
The Sumerians in Mesopotamia built the oldest known toilets between 3,500 and 3,000 B.C., consisting of deep pits lined with stacked ceramic tubes. This design revealed an early understanding of proper waste disposal.
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