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/


67 is the police code for a homicide. Kids just didn’t understand it and thought it referred to something else.
I thought that’s 187
That might just be California. In standard “10” police codes, it’s 67. https://www.police1.com/resources/articles/police-codes-VqFqvwMyjl6GES0f/
187 is homicide, yes, but it says there 67 is homocide. You’re welcome.
Thanks. Fucking ios keyboard gets worse every day.
In California it’s 187.
And now I gotta listen to sublime