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1500 BCE
1st of clocks
the sundial is the oldest known clock and dates way back to the Egyptian Period. I was a simple design that was based on the shadows of the sun cast as it moved throughout the day. -
245 BCE
the water clock
after the sundial the earliest civilizations moved to water to tell the time of day. Ctesibius of Alexandria improved the water clock and created the worlds first mechanical clock. it made a whistle like sounds to mark a designated time -
Jan 1, 1319
clock towers
since the 14th century, clock towers in Western Europe became capable of chiming at a fixed time everyday, the earliest of which was described in 1319. -
factory whistle
In the 1800s during the Industrial Revolution, it was the loud factory whistle, not the crowing rooster or the clock tower, that worked at and would wake to the noise every morning -
adjustable alarm clock
in 1887, a mechanical wind up alarm clock that coould be set for ANY time was made by Seth E. Thomas. In late 1870s, alarm clocks for homes started to become more popular and began being sold to peoples. -
radio alarm clock
the first radio alarm clock was invented by James F> Reynolds in 1940s. people could finally choose to wake up to the local news or music instead of a irritating bell thing. -
online alarm clocks
the most significant recent innovation regarding alarm clock happens in 2006, when the online alarm clock was invented, then beginning a new start for alarms all over.