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Wonderopolis

How Do Fangs Work?

Today’s Wonder of the Day is one you’ll really want to sink your teeth into!

#365

How Do Fangs Work?
What Is the Birthday Paradox?

Today in Wonderopolis we’ll be blowing out some birthday candles!

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What Is the Birthday Paradox?
Why Do Some Years Leap Ahead?

Today’s Wonder of the Day only comes around once every four years. Don’t miss it!

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Why Do Some Years Leap Ahead?
Why Are There Seven Days in a Week?

Today’s Wonder of the Day is perfect for a Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday!

#1666

Why Are There Seven Days in a Week?
How Many Steps Does Chichén Itzá Have?

We hope you find time in your calendar to read today’s Wonder of the Day!

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How Many Steps Does Chichén Itzá Have?
What Are the New Seven Wonders of the World?

This Wonder of the Day may have you traveling to NEW places!

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What Are the New Seven Wonders of the World?
Who Invented Numbers?

We’ll get right to today’s Wonder of the Day in 3…2…1…

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Who Invented Numbers?
How Many Seconds Are In a Year?

We hope you have TIME to join us in Wonderopolis today. We’re counting on you!

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How Many Seconds Are In a Year?
What Is a Metaphor?

Today’s Wonder of the Day is a breath of fresh air!

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What Is a Metaphor?
Who Invented Time?

We hope you have plenty of time to spend in Wonderopolis today!

#1081

Who Invented Time?
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?
How Long Is a Dog Year?

Today’s Wonder of the Day takes a closer look at a unit of time that’s really for the dogs!

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How Long Is a Dog Year?
Why Do the Seasons Change?

Ever wonder what’s the reason for the seasons? If so, you’re in luck. From spring to winter, today we’re exploring the ever-changing world of seasons.

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Why Do the Seasons Change?
What Was the Aztec Empire?

We think you’ll find today’s Wonder to be a-MAIZE-ing!

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What Was the Aztec Empire?
What Is a Spit Valve?

We don’t mean to toot our own horn, but we think today’s Wonder of the Day will be music to your ears.

#399

What Is a Spit Valve?
Who Is Uncle Sam?

Today’s Wonder of the Day features everyone’s favorite uncle!

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Who Is Uncle Sam?
How Do Mood Rings Work?

We hope you’re in the mood for an interesting Wonder of the Day today!

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How Do Mood Rings Work?