How did the ancient civilizations used to make ice?
In: Technology
They didn’t. Even as late as the 1800’s ice was cut from somewhere cold and transported to where it was in demand.
A guy named Frederic Tudor from Massachusetts made a fortune in the 1800’s cutting up frozen lakes and shipping ice across the globe to places as far as Hong Kong and India. See here:
https://en.m.wikipedia.org/wiki/Frederic_Tudor
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