Title text:
In 1899, people were walking around shouting ‘23’ at each other and laughing, and confused reporters were writing articles trying to figure out what it meant.
Transcript:
Transcript will show once it’s been added to explainxkcd.com
Source: https://xkcd.com/3184/


Ragebait. Millenials are like 40 and have back pain.
84CK P41N
D0/\/'7 m4k3 f|_|/\/ 0f /\/\y 84(kI can confirm you can in fact get back pain before the age of 40
Batman can confirm too.
Source: Knightfall.