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At about 2000-1,500 BC, the Egyptians began dividing the days and nights into 12 almost equal parts. Astonishingly enough, this division of time remained until today, after being adopted by the Greeks and later on by the Romans.
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The first clock was invented in 1300 BC by the Egyptians.
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One successor of the water clock is the hour glass, which researchers believe was invented in 150 B.C at Alexandria. It didn’t really “catch on” until the beginning of the “Discovery Age” in the 14th century, when Europeans began sailing frequently across the world.
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One of the final steps in the evolution of clocks was made in in 1656, when a Dutch man named Huyhens studied Galileo Galilei’s theory, that the swing of a pendulum can be used to power a clock.
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Although there was an attempt to modernize clock manufacture with mass production techniques and the application of duplicating tools and machinery by the British Watch Company in 1843, it was in the United States that this system took off.
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Then in 1906 the first contained battery driven clock was invented
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A clock that was built in 2017.