How people woke up before alarm clocks

5 days ago

Before alarm clocks, people used natural cues like daylight and roosters to wake up.
During the industrial revolution, knocker uppers were hired to wake workers on time by tapping on windows or using peashooters.
Other historical wake-up methods included candle clocks that dropped nails hourly and water clocks that triggered alarms.
Church bells and domestic bells were also common signals for waking up in medieval and early modern Europe.
The first mechanical alarm clock was invented in 1787, but widespread use only came after 1876.
Knocker uppers also played a societal role, sometimes discovering fires or crimes during their rounds.
By the 1920s, knocker uppers became obsolete as affordable alarm clocks became common.
Historical sleep patterns were often biphasic or polyphasic, differing from today's monophasic sleep.
Morning light exposure was crucial for regulating circadian rhythms in pre-industrial societies.
Maintaining regular sleep hours was considered vital for health, a principle dating back to ancient Greeks.

Hasty Briefsbeta