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

18 mar 1854 año - John Snow

Descripción:

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

Añadido al timeline:

14 dic 2018
1
0
415

fecha:

18 mar 1854 año
Ahora mismo
~ 170 years ago