In Luxor, the western bank of the Nile, in Medinet Habu Temple of Ramses III.
A bathroom with a sewage system, about 3500 years ago.
Toilets have doors inside the homes; our grandparents were the first to introduce sewage and running water systems in Egypt in homes, palaces, and temples.
Herodotus visited Egypt after the occupation of (the Persians) led by Cambyses after ten centuries of using toilets,
It has been amazing that the Egyptians bathed twice a day continuously. Herodotus was stunned that the Egyptians used soaps and aromatic oils to clean the body while they bathed. The man is coming From Greece, the capital of European civilization at the time.
He did not see people bathing in their homes twice a day except in Egypt … He did not see bathrooms inside the houses except in Egypt … All of Europe did not have a single bathroom in the house. Still, they used to spend their needs in the washroom behind trees, bathe in the seas, rivers, and pools. In our world here, Egyptian clergy members in temples bathed five times a day, and their whole body was clean of hair, the necessity of the top of purity to stand and worship their Deities that they venerate. There was in every temple a sacred lake with running water from the Nile for bathing and purification before the rituals of worship.
And every ancient Egyptian priest used to wash in it five times every day. The sacred lake still exists in the Karnak temple in Luxor. Most of the people of the earth did not know baths, running water and sewage except for a century or two. This happens. The bathroom is on the left side of the palace, attached to the temple.