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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…

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What Is a Prime Number?

Why Do Superheroes Have Secret Identities?

If you’re coming to Wonderopolis today, don’t forget to bring your cape!

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Why Do Superheroes Have Secret Identities?

Where Can Moss Grow?

A rolling stone will gather none of today's Wonder of the Day!

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Where Can Moss Grow?

What Causes a Shooting Star?

Today’s Wonder of the Day features some real rock stars that are out of this world!

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What Causes a Shooting Star?

What Bedtime Story Would You Tell?

Become the star of your own bedtime story. All you need is a dash of imagination and a pair of pajamas.

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What Bedtime Story Would You Tell?

Who Painted the Sistine Chapel?

Today’s Wonder of the Day will have you looking for art in the most unusual of places!

#23

Who Painted the Sistine Chapel?

Why Is April 11, 1954, the Most Boring Day in History?

This Wonder of the Day is anything but BORING!

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Why Is April 11, 1954, the Most Boring Day in History?

Who Invented Rock and Roll?

Are you ready to jam? You might want to turn today’s Wonder of the Day up to 11!

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Who Invented Rock and Roll?

What Is a Quinceañera?

Today Wonderopolis is exploring the tradition of the quinceañera. Put on your party shoes and join us as we celebrate this very important sweet 15.

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What Is a Quinceañera?

What Is Veterans Day?

Today in Wonderopolis, meet the brave and heroic men and women we call veterans!

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What Is Veterans Day?

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?

When Is the Winter Solstice?

Join us in Wonderopolis today as we greet a new season!

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When Is the Winter Solstice?

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?

What Are the Ides Of March?

Beware the Ides of March! If you’re wondering what “Ides” are, you’re not alone. Join us in Wonderopolis today to learn more!

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What Are the Ides Of March?

How Long Is a Marathon?

Are you ready for the long haul? Load up on carbohydrates, drink plenty of water, and get ready to run! Today’s Wonder of the Day may wear you out…

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How Long Is a Marathon?

What Is Ramadan?

Join us today when we’ll learn about a religious holiday that’s celebrated by millions of people around the world!

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What Is Ramadan?

Why Are There Silent Letters?

Today’s Wonder of the Day will give you the knowledge to know how to pronounce words like knife, knee, and gnaw!

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Why Are There Silent Letters?

Why Do Highways Have Mile Markers?

Today’s Wonder of the Day hits the road for a counting adventure!

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Why Do Highways Have Mile Markers?

What Is Angelman Syndrome?

We hope you’re AS excited AS we are for today’s Wonder of the Day!

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What Is Angelman Syndrome?

Do You Need Water To Make Waves?

Today’s Wonder of the Day will make you jump into the air with your hands held high!

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Do You Need Water To Make Waves?

Explore the World of Wonders

What Is a Prime Number?

Why Do Superheroes Have Secret Identities?

Where Can Moss Grow?

What Causes a Shooting Star?

What Bedtime Story Would You Tell?

Who Painted the Sistine Chapel?

Why Is April 11, 1954, the Most Boring Day in History?

Who Invented Rock and Roll?

What Is a Quinceañera?

What Is Veterans Day?

What Is the Birthday Paradox?

When Is the Winter Solstice?

Why Do Some Years Leap Ahead?

What Are the Ides Of March?

How Long Is a Marathon?

What Is Ramadan?

Why Are There Silent Letters?

Why Do Highways Have Mile Markers?

What Is Angelman Syndrome?

Do You Need Water To Make Waves?

SCIENCE 1252 Wonders

MATH 51 Wonders

SOCIAL STUDIES 643 Wonders

LANGUAGE ARTS 162 Wonders

TECHNOLOGY 292 Wonders

ARTS & CULTURE 565 Wonders

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