We’ve had 45 perfect square years in total leading up to 2025. The previous perfect square year was 1936, a whopping 89 years ...

The year 2025 is a “perfect square year” because it’s the product of a number multiplied by itself – 45×45=2025, a phenomenon that hasn’t happened for decades.

Read by Robert Blythe from the BBC Radio Drama Company. Once upon a time, a long time ago, there lived a perfect shape: Mr Square. He was the squarest of them all; he lived in a perfectly square ...