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Huh native south Americas may have invented aquaponics.
When Cortes’s band reached the Aztec capital, Tenochtitlan, one of the more widely traveled soldiers compared it (favorably) to Constantinople, considered one of the most magnificent cities of Europe at the time. Many American civilizations were quite advanced and impressive before Columbian contact!
Do you have additional information on this?
This looks similar to the rows of wave breakers for land reclaimation (German: Lahnung).
I’m not super well-informed on the subject, but I believe this wiki article references this kind of construction.