Caligula, by C. Suetonious Tranquillus, is an amazing Roman emperor biography of a madman, the Roman emperor, Caligula. One finds it hard to believe that such a man existed, even in Rome. There are few surviving sources about the reign of Caligula, although he is described as a noble and moderate emperor during the first six months of his rule. After this, the sources focus upon his cruelty, sadism, extravagance, and sexual perversion, presenting...