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While the 3.5mm headphone jack is only ~70 years old [1], the quarter inch jack has it's roots in the late 1870's [2]. [1] https://en.wikipedia.org/wiki/Phone_

While the 3.5mm headphone jack is only ~70 years old [1], the quarter inch jack has it's roots in the late 1870's [2]. [1] https://en.wikipedia.org/wiki/Phone_connector_(audio)#Miniature_size https://en.wikipedia.org/wiki/Phone_connector_(audio)#Miniat... [2] https://www.bbc.com/news/magazine-35253398 https://www.bbc.com/news/magazine-35253398

nl 4y ago
When you find a phone with a quarter inch jack I'll concede the point :)
2143 4y ago
I went from "they had it in the 30s?" to "omg 1950 was 70 years ago!"
- rightbyte 4y ago
  It is funny how long the approximation "subtract from 2000" to keep math simple sticks.