There is a discussion on Hacker News, but feel free to comment here as well.
Who and What Was a Knocker-Upper?
https://daily.jstor.org/who-and-what-was-a-knocker-upper/
https://daily.jstor.org/who-and-what-was-a-knocker-upper/
There is a discussion on Hacker News, but feel free to comment here as well.
2 Comments
ChaoticNeutralCzech@feddit.de · 3 pts · 2y
TL;DR Alarm clock service
Clav64@lemmy.ml · 1 pts · 2y
Who 'knocked up' the 'knocker-upper'?