jul 1, 1902 - Air conditioning
Description:
"The first modern air conditioner was invented in 1902 by Willis Haviland Carrier, a skilled engineer who began experimenting with the laws of humidity control to solve an application problem at a printing plant in Brooklyn, NY."Source: https://www.asme.org/topics-resources/content/global-cooling-the-history-of-air-conditioning#:~:text=The%20first%20modern%20air%20conditioner,printing%20plant%20in%20Brooklyn%2C%20NY.
Added to timeline:
Date:
jul 1, 1902
Now
~ 123 years ago