Flush Toilet

London, England

PrintAlexander Cummings, a Scottish watchmaker, patents the first flush toilet using the S-trap feature which laid the foundation for modern flush toilets. Thomas Crapper added widespread popularity and several refinements to this invention a hundred years later. The flush toilet had a profound impact on public health, allowing residents of cities to transport human wastes (via sewage systems) out of crowded households and city streets.

World Population : 170,060,000

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