To add to that, during the time period of the 1800s-1900s, sewer systems were
implemented in many cities of the U.S. and Europe, but this ended up causing an
overwhelming amount of untreated sewage. This made people experiment with
different ways to treat the untreated sewage such as sewage farming and filtration. (jan 1, 1800 – jan 1, 1900)
Added to timeline:
Water and Sanitation Timeline
Date: