We can stop crediting glaciers—the people had the power to move those massive stones.

Stonehenge is a mysterious prehistoric monument in England, known for its massive stone circles. It was built around 5,000 years ago, and its purpose remains a topic of debate—possibly a site for ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...