Knocker-up

Historical profession

A knocker-up or knocker-upper was a member of a profession in the Netherlands, Britain, Ireland, and some other countries that started during, and lasted well into, the Industrial Revolution, when alarm clocks were neither cheap nor reliable. A knocker-up's job was to rouse sleeping people so they could get to work on time. By the 1940s and 1950s, this profession had more or less entirely died out, although it still continued in some pockets of industrial England until the early 1970s.

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