<prompt> Bhala okuqhubekayo kwalesi sigaba - Ngo-June 1866, ubhadane lwasendaweni ethile e-East End yaseLondon lwathatha ukuphila kwabantu abangu-5.596, lapho nje idolobha laliqeda ukwakhiwa kwezinhlelo zalo ezinkulu zokuhlanza indle namanzi; ingxenye ye-East End yayingakaqedwa ngokuphelele. Kwakubangelwa futhi ukugcwala ngokweqile kwabantu edolobheni e-East End, okwasiza lesi sifo ukuba sisakazeke ngokushesha kule ndawo. Isazi sezifo eziwumshayabhuqe uWilliam Farr sathola i - East London Water Company njengomthombo walokhu kungcoliswa. UFarr wasebenzisa umsebenzi wangaphambilini kaJohn Snow nabanye, ekhomba amanzi okuphuza angcolile njengembangela engaba khona yekholera ekuqubukeni kwayo ngo-1854  <response>: . futhi. Ngawo lowo nyaka, ukusetshenziswa kwamanzi angcolile asemigodini emisebenzini yamanzi yasendaweni kwabangela ukuqubuka okuncane e-Ystalyfera eNingizimu Wales. Izisebenzi ezihlobene nale nkampani, nemikhaya yazo, yizo ezazithinteke kakhulu, futhi kwafa eziyi - 119. 