On this day, July 17, 1902, Willis Carrier created the first air conditioner, in Buffalo, New York.

[mahatmakanejeeves]

https://en.wikipedia.org/wiki/July_17

• 1902 – Willis Carrier creates the first air conditioner in Buffalo, New York.

[c-rational]

1. If I recall it was used for paper, i.e., to keep it dry.

[mahatmakanejeeves]

2. You are correct. NT

[jmowreader]

3. Pretty close

It was used to regularize humidity in an offset printing plant. If you’re running offset and you don’t have AC your press prints differently in summer than winter - a problem we have at the shop I work in.

Fun fact: Carrier sponsored the football stadium at Syracuse University until 2022. The Carrier Dome was built without AC and they didn’t have it until the naming rights were bought by a different company.