The character Nostromos is a reference to Nostradamus (1503-1566) the French doctor and astrologer who wrote Centuries, a famous collection of prophecies published in 1555. The prophecies in Centuries appear in four-line rhyming verses called quatrains. In vague language, they describe events from the mid-1500s up to the end of the world, which is predicted to happen in AD 3797. Many people have interpreted the prophecies in Centuries, connecting certain ones with events that have taken place since Nostradamus's time. The name "Nostradamus" is a Latinized version of his original name, Michel de Nostredame.