Where Do the Names of Our Months Come From?
TRIVIA, 15 Jan 2018
10 Jan 2018 – Our lives run on Roman time. Birthdays, wedding anniversaries, and public holidays are regulated by Pope Gregory XIII’s Gregorian Calendar, which is itself a modification of Julius Caesar’s calendar introduced in 45 B.C. The names of our months are therefore derived from the Roman gods, leaders, festivals, and numbers. If you’ve ever wondered why our 12-month year ends with September, October, November, and December – names which mean the seventh, eighth, ninth, and tenth months – you can blame the Romans.
The calendar of Romulus
The Roman year originally had ten months, a calendar which was ascribed to the legendary first king, Romulus. Tradition had it that Romulus named the first month, Martius, after his own father, Mars, the god of war. This month was followed by Aprilis, Maius, and Iunius, names derived from deities or aspects of Roman culture. Thereafter, however, the months were simply called the fifth month (Quintilis), sixth month (Sixtilis) and so on, all the way through to the tenth month, December.
The institution of two additional months, Ianuarius and Februarius, at the beginning of the year was attributed to Numa, the second king of Rome. Despite the fact that there were now 12 months in the Roman year, the numerical names of the later months were left unchanged.
Further reading: Explainer: the gods behind the days of the week
Gods and rituals
While January takes its name from Janus, the Roman god of beginnings and endings, February comes from the word februum (purification) and februa, the rites or instruments used for purification. These formed part of preparations for the coming of Spring in the northern hemisphere.
The februa included spelt and salt for cleaning houses, leaves worn by priests, and strips of goat skin. These strips were put to good use in the festival of the Lupercalia, held each year on February 15. Young men, naked except for a goat-skin cape, dashed around Rome’s sacred boundary playfully whipping women with the strips. This ancient nudie run was designed to purify the city and promote fertility.
The origins of some months were debated even by the Romans themselves. One tradition had it that Romulus named April after the goddess Aphrodite, who was born from the sea’s foam (aphros in Ancient Greek). Aphrodite, known as Venus to the Romans, was the mother of Aeneas, who fled from Troy to Italy and founded the Roman race. The other version was that the month derived from Latin verb aperio, “I open”. As the poet Ovid wrote:
For they say that April was named from the open season, because spring then opens all things, and the sharp frost-bound cold departs, and earth unlocks her teeming soil …
There were similar debates about the origins of May and June. There was a story that Romulus named them after the two divisions of the Roman male citizen body, the maiores (elders) and iuniores (juniors). However, it was also believed that their names came from deities. The nymph Maia, who was assimilated with the earth, gave her name to May, while Juno, the goddess of war and women, was honoured by the month of June.
The numerical names of the months in the second half of the year remained unchanged until the end of the Roman Republic. In 44 B.C., Quintilis was rebranded as Iulius, to celebrate the month in which the dictator Julius Caesar was born.
This change survived Caesar’s assassination (and the outrage of the orator M. Tullius Cicero, who complained about it in his letters). In 8 B.C., Caesar’s adoptive son and heir, the emperor Augustus, had Sextilis renamed in his honour. This was not his birth month (which was September), but the month when he first became consul and subjugated Egypt.
This change left four months – September, October, November and December – for later emperors to appropriate, though none of their new names survive today. Domitian renamed September, the month he became emperor, to Germanicus, in honour of his victory over Germany, while October, his birthday month, he modestly retitled Domitianus, after himself.
Further reading: Explainer: the seasonal calendars of Indigenous Australia
However, Domitian’s arrogance paled in comparison with the megalomaniacal Commodus, who rebranded all the months with his own imperial titles, including Amazonius (January) and Herculeus (October).
If these titles had survived Commodus’s death, we would not have the problem of our year ending with months carrying the wrong numerical names. But we would be celebrating Christmas on the 25th of Exsuperatorius (“All-Surpassing Conqueror”).
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