How Did the ‘Metric System’ Spread Across the World?

Imagine the whole world agreed on one way to measure things, like using inches, feet, and miles in every country. That’s not what happened. Instead, they chose meters, kilograms, and liters, all from a single system called the metric system.

The metric system started in France more than 200 years ago, but it didn’t stay there. Scientists, engineers, and even countries began using it because it was simple: every measurement is based on multiples of ten. That made math and trade easier for everyone. Soon, the whole world wanted to join, from Europe to Africa, Asia, and even space missions like those to the moon.