Yes over 3000 years ago
The Greeks and Romans .. See the history of plumbing part 4
No the Romans used the knowledge from the Greeks and began the development of sanitary systems.
They were roman They were sewers They weren't in the shape of a teddy They were sewers
The sewers which are under the concrete slab
The Romans built sewers for the reasons one builds sewers: to channel and dispose of waste and for hygiene.
Tagalog Translation of SEWERS: mga mananahi
Because they don't like sewers.
Sewers - album - was created in 2008.
Sewers of Gold was created in 1979.
The duration of Sewers of Gold is 1.7 hours.
Pleasures Pave Sewers was created in 1999.
Public health was very important to both the Greeks and the Romans. The Romans took their provisions for public health to a higher level. They built aqueducts to bring fresh water from the sources on the mountains to the towns. They built sewers, public toilets and public baths.