31 agos 1854 año - The cause of the Cholera Epidemic in London is found by John Snow
Descripción:
John Snow was a physician that understood that cholera was a water transmitted disease and not air transmitted, which was what was believed at the time. This was a breakthrough in the epidemiology field and led to great improvements in public health services as well as a raise in awareness on the dangers of water pollutionAñadido al timeline:
fecha:
31 agos 1854 año
Ahora mismo
~ 171 years ago