How Did People Wake Up for Work Before Alarm Clocks?

Before alarm clocks became ordinary, someone could literally stand outside your window and wake you for work. In industrial Britain, these workers were known as knocker-uppers. Before dawn, they walked dark streets tapping upstairs windows with long poles, making sure factory workers, dockers, and other clients woke in time for their shifts. But this strange forgotten job reveals something much bigger. Factories and railways were teaching society to live by the clock—before every household had the technology to wake by one. The knocker-upper filled that gap. A tiny forgotten job that reveals how industrialization changed time itself. #KnockerUpper #industrialrevolution #britishhistory #hiddenhistory