Tools For Measurement

          Over the millenniums, there have been many tools for keeping track of time.  Most of them have worked very well.  Some of them didn’t make it very far.  The most popular ways of keeping track of time are clocks and calendars.  Clocks keep track of time in one day, while calendars keep track of time over a long period of time.  We’ll teach you the history of both of these time trackers and more.

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