Mr. Smarty Pants Knows

When running for president, Abraham Lincoln was often referred to as a baboon, a monkey, an ape, a gorilla, and similar epithets.

Jimmy Nicol was a substitute drummer for the Beatles during their 1964 Australian tour, after Ringo Starr collapsed on June 3, 1964 due to tonsillitis.

In a recent article in The Journal of Economic Perspectives, Justin Rao of Microsoft and David Reiley of Google estimate the societal cost of spam is $20 billion. The revenue from spam is $200 million.

Sherlock Holmes' deerstalker hat was never mentioned in the printed words of the Sir Arthur Conan Doyle books.

Around AD525, there was a version of polo in India where players sat on the backs of giant elephants, trying to strike a ball on the ground with extremely long mallets. Elephant polo is still played in Nepal and Thailand, and there's a World Elephant Polo Association.