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Apr 18, 1300
Clock was invented
clock was made on paper http://www.mce.k12tn.net/renaissance/inventions.htm -
Apr 18, 1581
Clock first advancement
Galileo discovered the pendulum in 1581 http://www.mce.k12tn.net/renaissance/inventions.htm -
Clocks second advancment
metallic gear(toothed wheel) and the use of the screw in assembling the clocks were first used. http://www.mce.k12tn.net/renaissance/inventions.htm -
Digital Clock today
digital clocks today are used to tell time http://www.mce.k12tn.net/renaissance/inventions.htm
