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On this day in 1902, the first air conditioner was created

July 17, 2025

|Recurring Event (See all)

An event every year that begins at 12:00 am on day 17 of July, repeating indefinitely

On this day in 1902, the first air conditioner was created. 😄🌬☀️🔥

Willis Carrier, a young mechanical engineer in Buffalo, New York, invented the modern air conditioner while seeking solutions for a publisher struggling with humidity’s effects on paper. Modern A/C came to be used for much more than keeping paper dry. Today, we still much appreciate the value of Carrier’s invention!

Did you know? In its early years, air conditioning influenced the movie theater industry. During the 1920s, theaters were some of the earliest businesses to adopt A/C, resulting in greatly increased summer popularity as patrons came inside to beat the heat. Marketers took advantage of the trend, releasing their “summer blockbusters” when moviegoers were most likely to seek the cool air. ❄️🎥❄️🎞❄️

An accomplished engineer with a degree from Cornell University, Carrier went back to his roots when recalling his most important lesson. As a boy, he struggled while learning fractions. His mother remedied the problem, demonstrating fractions by
cutting whole apples into diminishing pieces. Carrier claimed that this was his most important lesson as it showed him the importance of creative and intelligent problem-solving. 🍏🍎🍏

Reclining Lady, Raimundo de Madrazo y Garreta

-Written by Anna Zemaitaitis, Communications and Design Officer


July 17, 2025
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