In this week's episode mankind's most Ingenious Inventors are given the Horrible Histories treatment, as we take in everything from the invention of the wheel to the crisp, featuring the Gutenberg press, the man who invented both the dictionary (very successfully) and manned flight (less successfully), and the Greeks vs the Chinese battling as to which of them are History's best inventors.

A look at the most ruthless rulers of all time. Henry VIII is so demanding he has a brick wall built at his bedroom door every night, those vicious Vikings find that sorry seems to be the hardest word, hold your nose in Versailles, because Louis XIV hasn't got any loos, and rock out with the Warlords from Hell.