8Emperor Caligula wanted his horse to be consul

The Roman Empire had its fair share of crazy emperors, one of which was the infamous Caligula. He had a reputation for being one of the most mentally unstable rulers in the ancient Roman world.

But perhaps what he is best known for is electing his favorite horse, Incitatus, as counsel. Whether or not this actually happened remains the subject of some debate — it was reportedly written about a solid decade after his death. The rumor was that he appointed his horse as counsel because he felt an animal could do a better job than the Senate.