30
/pt/
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
June 15, 2024
2348934
197516
2

18 mar 1854 ano - John Snow

Descrição:

60% of people frinking water from pump had cholera
VS 7% of people drinking from another pump
it was dirty water not miasma

Adicionado na linha do tempo:

14 dez 2018
1
0
415

Data:

18 mar 1854 ano
Agora
~ 170 years ago