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During the transformative era of the Industrial Revolution, as factory work and strict shift schedules became the norm, the simple act of waking up on time became a significant challenge for many. Before the widespread availability of reliable and affordable mechanical alarm clocks, individuals needed a dependable method to ensure they arrived at their demanding jobs punctually. This societal need gave rise to a unique and now-extinct profession.
These dedicated individuals, known as "knocker-uppers," were employed to rouse people from their sleep. Their methods varied, often involving long poles, frequently made of bamboo, to tap on windows, especially those on upper floors. Other tools included short, heavy sticks for knocking on doors, soft hammers, or even pea-shooters, which were used to fire dried peas at windows to create a distinctive, persistent sound. Some knocker-uppers would wait until they received confirmation that their client was awake, while others would simply give a few taps and move on to their next appointment. In some industrial areas, like mining towns, houses even featured "knocky-up boards" or "wake-up slates" where miners could chalk their shift details for the knocker-upper.
This profession was crucial in ensuring a disciplined workforce, as being late for work could mean immediate dismissal and severe hardship for families. Typically, elderly men and women took on this demanding role, with some police constables even supplementing their income by performing these early morning rounds. Clients would pay a small weekly fee, usually a few pence or shillings, for this essential service. The need for knocker-uppers gradually faded in the early to mid-20th century as alarm clocks became increasingly common, reliable, and inexpensive, rendering the human wake-up call largely obsolete by the 1940s and 1950s, though some continued in isolated areas until the 1970s.