Por un escritor de hombre misterioso
Before there were alarm clocks, people used water, pea shooters, puppets, and fire to get themselves out of bed.
How did people wake up on time before the invention of the alarm clock? - Quora
How Did People Wake Up Before Alarm Clocks? – Hibermate
Candle Alarm Clocks – CryptLabs
How Did People Wake Up Before Alarm Clocks? – Hibermate
Design Story: The Alarm Clock – Work Over Easy
What did people do before alarm clocks?, by MaryAnn Lajoie
know on X: Before alarm clocks were invented, knocker-ups tapped on client's windows with long sticks until they were awake. / X
Alarm Clocks – Gossamer
How Did People Wake Up Before the Invention of the Alarm Clock?