Interesting, Ancient Toilets

Mesopotamia

The earliest known internal pit toilet, with clay pipes and sewers, comes from the Mesopotamian city of Uruk, dating to c.3200 BCE.

Skara Brae

Skara Brae, the largest island of Orkney, Scotland, consists of a c.3000 BCE village, with a number of small houses without roofs. Each house had a toilet, with a sewer system, draining effluent to the ocean.
Neolithic Orkney, Skara Brae

Indus Valley Civilisation

The pipe below is part of the remains of a drainage system from Lothal, Gujarat, the Indus Valley Civilisation (northwestern India and Pakistan), from c 2500 BCE. Houses of the city drained water to a central sump outside of the city.
A drainage system from Lothal, Gujarat, the Indus Valley Civilisation (C.2500 BC).

Jerusalem

A stone toilet that is 2700 years old, was found in the Armon Hanatziv neighbourhood of Jerusalem, made of carved limestone.
A stone toilet that is 2700 years old, in the Armon Hanatziv neighborhood of Jerusalem

Vietnam

In southern Vietnam, at the Rạch Núi archaeological site, a toilet has been found dating back to 1500 BCE

Rome

Almost every city in ancient Rome had large public latrines. However, it was the Etruscans who constructed the first underground sewers in the city of Rome around 500 BCE.

For example, at Ostia Antica, 25 kilometres southwest of Rome, public latrines lie along 3 walls, with washbasins between 2 entry doors near the Forum.

The public sit on holes cut into marble. Under the seats, a deep channel flowing from the drain of one of the Public Thermal Baths would take away waste.
At Ostia Antica, 25 kilometres southwest of Rome, public latrine lie along 3 walls