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It's Okay to Be Smart: Why Are There 7 Days in a Week?

15 minutes 32 seconds

Now Playing As: Captioned (English) (change)

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Why does everyone use a 7 day week, and where did it come from? Where do the names of the days come from? Here’s the true story of one of the oldest human customs still in use today. Parts of the "It's Okay to Be Smart" series.

Media Details

Runtime: 15 minutes 32 seconds

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