The belief has been long held that pressurized plumbing in the Americas was brought over by the Spanish when they conquered, um, everything in the 16th century. But archaeologists have recently uncovered evidence that the Mayans had it figured out all on their own as early as 250 BCE. Cool!
The archaeologists aren’t really sure what the Mayans were using the pressurized system for, but their guesses are a fountain or distribution of wastewater disposal to houses.
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