>>17871434
>>17869895
>>17869772
>writing
The Maya script was a true writing system under the strictest definition

>Wheel
see pic

>Soap, hygine, medicine
This is the dumbest one, the Aztec had/did

>Fleet of civil servants who washed buildings and swept roads every day
>Said officials also collected waste from public toilets to reuse as fertilizers and dyes
>Bathing in steam bathes was done on a almost daily basis even for commoners, and traditional bathing was apparently even more common; some conquistadors thought smallpox was from them bathing so much
>People were expected to wash their hands, face, teeth, and sweep before and after every single meal multiple times a day, for everybody but the royalty and elderly to be clean shaven/to pluck their hairs
>Cleanliness one of the highest mortal virtues mentioned in sources on their ethics, some modern reconstructions of of aztec theology has dirt, a lack of order, sin etc acting as a sort of supernatural cosmic entropy causes bad luck and would destroy the world (which sacrifices, cleanliness etc counteracts)
>Huge corpus of pharmaceutical products for soaps, shampoos, body lotions, perfumes, breath freshers and toothpastes, one of few premodern societies to do preventative rather then just corrective dentistry
>Some aqueducts like pic related had switching mechanisms for easier/regular cleaning
>Structures were built with aromatic woods, with gardens in and around spaces for sweet smells, people would carry flowers, incense was regularly burned, etc
>Even architecture was designed to not have doors, palaces/civic buildings had large open courtyards to ward off miasma, they and other elite structures in turn were placed around large open plazas or again gardens (or gardens in palace courtyards)
>not taking care of your home, land plot etc could result in it being seized from you, similar ecological carelessness could be punished by death, allegedly littering too (tho I can't find a source for littering)

1/?