Livy's Ships in the Sky: Rome's Strange Sighting of 218 BCE

In the winter of 218 BCE, with Hannibal in Italy, Rome logged phantom ships gleaming in the sky and figures in shining clothes.

Livy's History of Rome, Book 21, says that in the winter of 218 BCE the likeness of ships shone from the sky, one of many prodigies reported to the Roman Senate.

In Book 21 of his History of Rome, Livy describes the frightening winter of 218 BCE, after Hannibal had crossed the Alps and defeated the Romans at the Trebia. Rome, he says, was full of reports of prodigies, the unusual signs that Romans believed showed the gods were displeased. Each year's list closes with the rites the Senate ordered in response.

The list in chapter 62 is long and strange. A six-month-old baby shouted "Io triumphe" in the vegetable market. An ox climbed to the third floor of a building and threw itself down. And in the Latin, navium speciem de caelo adfulsisse: the likeness of ships had shone out from the sky. In the district of Amiternum, forms of men in white or shining garments were seen at a distance in many places, and in Picenum stones rained from the sky.

These were not casual rumors. Prodigies were reported to the Senate, which judged them and ordered rites of expiation, and Livy, writing two centuries later, drew on records compiled by the priests. That is why Roman prodigy lists often have dates, places and official responses. A later writer, Julius Obsequens, collected many of them into a single book of prodigies.

Ancient-astronaut authors treat the passage as a sighting log. Historians note that prodigy reports surged in times of crisis, that Livy himself says fear made people credulous, and that lights in the sky, halos and cloud shapes could easily be read as ships. Either way, it is a rare case of an unexplained aerial sighting entering a government record.