[via BoingBoing]
The Dead Sea Scrolls it seems contain specifications for construction of latrines:
The Seattle Times: Nation & World: Toilet evidence links Dead Sea Scrolls to sect
[...]
The Essenes are one of the few ancient groups whose toiletry practices were documented. The first century Jewish historian Josephus noted that members of the group normally went outside the city and dug a hole, where they buried their waste.
Two of the Dead Sea Scrolls note that the latrines should be situated northwest of the settlement, at a distance of 1,000 to 3,000 cubits — about 450 to 1,350 yards — and out of sight of the settlement.
Tabor and Joe Zias of the Hebrew University of Jerusalem, an expert on ancient latrines, went to the site and took samples.
Zias sent samples to anthropologist Stephanie Harter-Lailheugue of the CNRS Laboratory for Anthropology in Marseilles, France, who found preserved eggs and other remnants of roundworms, tapeworms and pinworms, all human intestinal parasites.
Samples from the surrounding areas contained no parasites. Had the waste been dumped on the surface, as is the practice of Bedouins in the area, the parasites quickly would have been killed by sunlight. Buried, they could persist for a year or longer, infecting anyone who walked through the soil.
The situation was made worse by the Essenes having to pass through an immersion cistern, or Miqvot, before returning to the settlement. The water would have served as a major breeding ground for the parasites.
“The graveyard at Qumran is the unhealthiest group I have ever studied in over 30 years,” Zias said. Fewer than 6 percent of the men buried there survived to age 40, he said. In contrast, cemeteries from the same period excavated at Jericho show that half the males lived beyond age 40.
What impressed me about this bit of news was that the Bedouins will probably have a hard time explaining the reasons behind their practices, but even back at the relevant time, the Essenes probably had elaborate and sophisticated explanations for the superiority of their system as compared to the illiterate practices of the nomads.
My point? There are parallels to this sort of thing in the patronising dismissal of “primitivism” by the scientistic, but often, the lack of an explanation no more disqualifies a practice than the presence of an elaborate, detailed and systematic explanation (in itself) underwrites another.
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