@DrJoeHanson was Curious about #Seven & decided it's @OkayToBeSmart about What it has to do with #DaysInAWeek ...

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The word “Seven” is built on ancient words that mean "the Strength that comes in Groups of Seven (the Seven Stars of The Big Dipper or -of the |Pleiades (daughters of Atlas & |Pleione, transformed by Zeus into stars (tho we know now there are Eleven of those ... Hey! 'Seven-Eleven!'), The Magnificent Seven, Seven Wonders of the World, The Seventh Son, etc.)

the same base beneath #RomanNumeralVII #7 #Seventh #Seventy #RomanNumeralLXX #70 #Seventieth #Seventeen #Seventeenth #17) 

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And then--since people continue to act like YouTube doesn't allow people to "Copy Embed Code" (right-click the video above) and tell you their videos' descriptions are "below"--

PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateOKAY ↓ More info and sources below ↓ We’re on PATREON! Join the community ►► https://www.patreon.com/itsokaytobesmart SUBSCRIBE so you don’t miss a video! ►► http://bit.ly/iotbs_sub Why does everyone use a 7 day week, and where did it come from? Where do the names of the days come from? And who can we blame for Mondays? Here’s the true story of one of the oldest human customs still in use today. It gets a little weird. References: https://sites.google.com/view/referen... Special thanks to our Brain Trust Patrons: AlecZero Amy Sowada Baerbel Winkler Benjamin Teinby Denzel Holmes Diego Lombeida Dustin Eric Meer George Gladding Jay Stephens Karen Haskell Marcus Tuepker Oliver and Arden Bradshaw Peter Ehrnstrom Robert Young Salih Arslan Vincbis Zenimal Join us on Patreon! https://patreon.com/itsokaytobesmart Twitter http://www.twitter.com/DrJoeHanson http://www.twitter.com/okaytobesmart Instagram http://www.instagram.com/DrJoeHanson http://www.instagram.com/okaytobesmart Merch https://store.dftba.com/collections/i... Facebook https://www.facebook.com/itsokaytobes...

 &--just in case the code given doesn't access that video anymore--I'll take notes for a summary of the facts (which Dr. Hanson explains better in the video):

It started with The Moon (my goddess Luna?), a Wanderer like the 5 visible planets & the Sun (7 Wanderers)---the planetary week is eight days---our Norse ancestors changed some of those god-names into the names of the gods they served (they're the same gods (i.e. in parallel ), but have you ever tried to cash a check with someone else's name on it because 'you both do the same job'?) 

& then ... Math! Jews probably had the seven-day week for the same reason, but they tied it to "the number of days in the creation-story' ... Dr. Hanson explains how The Moon's phases have something to do with the numbers 1, 2, 4, 7, 14 & 28, a #PerfectNumber (with #PerfectNumbers being those whose factors add up to the numbers themselves ... after 6 & 28, there are 496, 6128, and then 33,550,336!!) ... ancient sexigesimal system, 1/7=0:8,34,17,8,34,17,(repeating) a mystical fraction inspiring 7's use in religious meanings ...