Who Invented the Alarm Clock?

In looking back through history to see who invented the alarm clock, you might be shocked to find that Plato had a large water clock with some kind of water organ sound to awaken him. In 1847, the first adjustable mechanical alarm clock was patented. You can find more information here: http://en.wikipedia.org/wiki/Alarm_clock
Copyright © 2014 Dictionary.com, LLC. All rights reserved.