Ku dhameystir weedhan soo socota: John Snow, hormuudkii suuxdinta, wuxuu ku noolaa lambarka 18 laga soo bilaabo 1852 ilaa uu ka dhintay 1858. Snow waxaa loo tixgeliyaa mid ka mid ah aabayaasha cudurrada faafa ee casriga ah, qayb ahaan sababtoo ah shaqadiisa ku aaddan raadinta isha cudurka
Bandow cudurka shuban biyoodka ah oo ka dilaacay Soho, London, sanadkii 1854.