3 feb 7500 anni - Early sanitation
Descrizione:
Clay pipes were evident during this period of time where civilians knew of dumping waste safely. Vertical shafts were utilized for disposal of waste and wells were used for fresh water. This was seen in the earliest settled societies such as the Indus Valley, Mesopotamia, and Iran.Aggiunto al nastro di tempo:
Data:
3 feb 7500 anni
Adesso
~ 5477 years and 0 months later