What if a teenager invented something so clever that people would still talk about it 400 years later?

The Day Blaise Pascal Was Born!

Meet the teenage genius who invented a calculator before your parents were even thought of!

Blaise Pascal invented a calculator when he was just a teenager in the 1600s!

On June 19, 1623, in a small town in France called Clermont-Ferrand, a baby boy named Blaise Pascal was born. Nobody knew yet that this tiny baby would grow up to be one of the smartest people EVER!

Here's the incredible part: when Blaise was just 16 years old (probably around the age of your older sibling or babysitter!), he built one of the world's first mechanical calculators. Can you imagine inventing something that amazing while still being a teenager?

Blaise made this machine to help his dad, who had a really boring job counting taxes. His dad had to add up numbers ALL day long, and Blaise thought, "There has to be a better way!" So he designed a special box with gears and wheels inside that could add and subtract numbers automatically. He called it the "Pascaline," and it was basically the great-great-great-grandparent of the calculator on your phone!

But wait, there's more! Blaise also figured out amazing things about air pressure and why straws work. He discovered that the higher you go up a mountain, the less air pushes down on you. Pretty cool, right?

💡 Pascal built about 50 different versions of his calculator machine, and some of them still exist in museums today — and they still work!