August 1854 was when discovered Cholera by John Snow.
He discovered Cholera when there was an outbreak which occurred in Soho. After he carefully investigated the outbreak, by plotting cases of cholera on a map of the area, he was able to identify a water pump in Broad Street as the source of the disease.
He had the handle of the pump removed, and cases of cholera immediately began to diminish.
John snow first discovered cholera by doing a research is a big city in London and he find out that people in those areas were drinking contaminated water and he discovered cholera in 1854.
Paraphrasing is when you read someone's idea or concept from another source and then put it into your own words. It is perfectly acceptable to paraphrase another author's research IF you cite it and give them proper credit for their ideas--even if those ideas are now in your own words.
If im on the right track then a way to right it with dashes would be: Sacrificing her was a mistake-a mistake that could have been avoided. but i may not have understood the question??
