29 sept 91 año aC - Public Health and Sanitation Systems
Descripción:
- Created aqueducts to carry clean water to the cities- Built sewers to carry waste materials away from cities
- Used filtering systems in public baths to prevent disease
- Drained marches to reduce the incidence of malaria
Añadido al timeline:
fecha:
29 sept 91 año aC
Ahora mismo
~ 2117 years ago
