30 mayo 1854 año - Cholera & John Snow
Descripción:
John Snow got authorities to remove the pump handle at the Broad Street pump in Soho, the cause of cholera outbreak at the time. 60% of people who drank water from this pump had cholera. Led Snow to believe that cholera was cause by dirty water and not miasma.Añadido al timeline:
fecha:
30 mayo 1854 año
Ahora mismo
~ 171 years ago