The 19th was a century of world-wide cholera epidemics and massive urban sewer programs. From time immemorial, mankind created systems to access water and dispose of waste, but never gave much thought to the health consequences of either or both or their interaction. Thanks to Victor Hugo, the world's most famous sewers are those of Paris, which were constructed in the 18th and early 19th century. The era of Napoleon III saw the epic reconstruction of the city by Baron Haussmann, who transformed above and below. He significantly expanded the sewers and built masterpieces for the transmission of storm water and liquid waste to the Seine. He apparently did not want #2 despoiling his sewers and continued the use of nightsoilmen to clean out cesspits. Solid human wastes were added later in the century by a successor City Engineer. The construction of London's sewers coincided with the mid-century realization that cholera was a waterborne disease. London, at two-and-a-half million people, was the largest city in the world and in desperate need of extensive water intake and waste output. The Victorian engineers rose to the task and were the first to separate, and thus allow a more lenient disposal of, rainwater from human waste. The unpredictable storms were allowed to flow directly into the Thames. Human waste was routed far to the east. Around the world, the steps taken in Paris and London led the way forward, and as mankind moved into the 20th century and even larger cities, processes for waste treatment moved to the fore. Admittedly, the most apt characterization of this book is odd.
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