The history of keeping cool

POSTED: 09:24 AM PDT Jul 18, 2012    UPDATED: 05:02 AM PDT Jul 22, 2014 

This week marks the 112th anniversary of air conditioning, and aren't we all thankful! Look back at the ways humans have tried to stay cool through the centuries.

Cooling - Persians
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Medieval Persians used wind towers, which worked kind of like a reverse chimney. Tall windows captured wind, which was funneled into and circulated around homes, according to history.com.

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