Eratosthenes, to within 10% of the modern value. They think, I don’t think they’re 100% on the exact size of his measurement unit. Stadia?

I think he bought the “Big book of Canadian Cliches” and took to read on the toilet. Then his legs fell asleep after an hour or two and he dropped the book in the toilet.

Unfortunately he only made it through two or three. So we’re stuck with hockey comments until someone can teach him some new Canadian cliches.