he Cloaca Maxima was the old sewage system of Rome. It was constructed in the 6th century BC with the help of Etruscan technicians. With the help of these Etruscans the swampy area at the foot of the Palatine could be drained. The construction of the Roman Forum could now begin.
Nowadays the Cloaca Maxima is still working, but the outlet has been adapted to modern standards and improved a lot since then.