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Wonderopolis

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What Are the Northern Lights?

Today’s wonder will have you seeing the night sky in a whole new light. Let’s explore the Aurora Borealis!

#83

What Are the Northern Lights?
When Were ZIP Codes Invented?

ZIP into Wonderopolis for today’s Wonder of the Day!

#2340

When Were ZIP Codes Invented?
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?
What Is Cryptozoology?

Check out today’s MONSTER of a Wonder of the Day!

#2799

What Is Cryptozoology?
Who Was Clara Barton?

Do you believe in angels? Join us in Wonderopolis today to meet the woman Civil War soldiers called “the angel of the battlefield.”

#173

Who Was Clara Barton?
Why Are Some Cheeses Stinky?

Whew! What’s that smell? Hold your nose when you join us for today’s Wonder of the Day!

#322

Why Are Some Cheeses Stinky?