The Librarian Who Measured the Earth

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The Librarian Who Measured the Earth

A perfect introduction to mathematical concepts for young readers, written by a Newbery honor-winning author! This colorfully illustrated biography tells the story of the Greek philosopher and scientist Eratosthenes, who compiled the first geography book and accurately measured the globe's circumference.

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About the Book

What are the possibilities when you’re full of wonder and always asking questions? This biography tells the story of Eratosthenes and how his curious mind led him to figure out the earth’s circumference — over 2,000 years ago!

You’ll explore multiple layers of history, science, and mathematics in this book. Kids will get to know how young people studied in ancient times and hear about the Great Library of AlexandriaThey’ll learn how Eratosthenes approached his scientific and mathematical questions.

These layers are sure to spark discussions and rabbit trail learning. Plus, your child will be inspired by Eratosthenes’ lifelong curiosity about the world around him.

📚 Expand your child’s appreciation of other curious trailblazers from around the world with our collection of favorite picture book biographies.

Recommended Age: 6+

Leslie says:

I absolutely love how Eratosthenes boldly asks questions and is always making lists. His curious mind always led to more questions. Because of this story, I will never think of the summer solstice the same again!



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