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  Why Does Hair Turn Gray?

  There’s nothing black and white about today’s Wonder of the Day!

  #6

  Why Does Hair Turn Gray?

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  What is COVID-19?

  Read today’s Wonder of the Day for useful information about COVID-19.

  #2545

  What is COVID-19?

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  What Are the 12 Days of Christmas?

  We’ve got a dozen reasons why you should visit Wonderopolis today!

  #1816

  What Are the 12 Days of Christmas?

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  What Will the COVID-19 Vaccines Do?

  Learn about an important public health development in today’s Wonder of the Day!

  #2731

  What Will the COVID-19 Vaccines Do?

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  What Would You Pack For a Trip To Outer Space?

  Ever wonder what life would be like on a spaceship? Find out today in Wonderopolis!

  #19

  What Would You Pack For a Trip To Outer Space?

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  Why Do Birds Fly in a V?

  What’s that up in the sky? Is it a plane? No, it’s today’s Wonder of the Day!

  #28

  Why Do Birds Fly in a V?

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  Who Came Up With Chewing Gum?

  What can tree sap teach us about blowing bubbles? The answer will blow your mind.

  #12

  Who Came Up With Chewing Gum?

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  Where in the World Is Kolkata?

  Join us in Wonderopolis today for a visit to one of the most populous countries in the world!

  #2022

  Where in the World Is Kolkata?

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  How Far Can a Paper Airplane Fly?

  Spread your wings and take flight with today’s all-new Wonder of the Day!

  #626

  How Far Can a Paper Airplane Fly?

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  Who Created Frozen Pizza?

  Mmmm! Can you smell that? Join us in Wonderopolis today as we defrost that frozen Frisbee and bake it into a tasty treat!

  #154

  Who Created Frozen Pizza?

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  Why Is the Statue Of Liberty Green?

  Was Lady Liberty’s gown always that shade of green? Find out today in Wonderopolis!

  #257

  Why Is the Statue Of Liberty Green?

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  Who Was St. Nick?

  Better not pout…better not cry…because you-know-who is watching!

  #428

  Who Was St. Nick?

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  Who Was Patsy Mink?

  Learn about a gender equality hero in today’s Wonder of the Day!

  #2872

  Who Was Patsy Mink?

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  What Is a Prime Number?

  Today’s mathematical Wonder of the Day may have you counting 2, 3, 5, 7, 11, 13, 17, 19, 23, 29…

  #190

  What Is a Prime Number?

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  Why Should We Remember the Alamo?

  We wish we had already told you about today’s Wonder of the Day, because we need help remembering!

  #508

  Why Should We Remember the Alamo?

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  Who Owns the Smallest House?

  Even though today’s Wonder of the Day is tiny, it’s big on fun!

  #803

  Who Owns the Smallest House?

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  Where Is the Largest Library in the United States?

  Be sure you “check out” today’s Wonder of the Day!

  #568

  Where Is the Largest Library in the United States?

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  Who Was Rosalind Franklin?

  We’ll be FRANKlin—today’s Wonder of the Day is one of our favorites!

  #2867

  Who Was Rosalind Franklin?

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  How Many Is a Googol?

  If you’re searching for clues about today’s Wonder of the Day, just cool your engines and read on!

  #411

  How Many Is a Googol?

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  Who Are the Rockettes?

  You’re sure to get a big kick out of today’s Wonder of the Day!

  #1943

  Who Are the Rockettes?

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