On This Day: Dies Nefastus—Rome Holds Its Breath
September 7 on the Roman calendar: no votes, no lawsuits, no new business—today is a dies nefastus.
Joachim Patinir — "The Penitence of Saint Jerome" (ca. 1515), public domain
Rome’s calendar locks everything down.
On dies nefasti like September 7, official life in Rome pauses. Magistrates cannot convene the Senate, no public votes take place, and lawsuits stop mid-sentence. Even criminal trials must wait—the day is off-limits for mortal business.
A superstition with serious teeth.
Romans believed dies nefasti belonged to the gods. Starting business on such a day risked cosmic backlash. If a priest declared the timing unlucky, even the boldest senator stayed home and waited for the next sunrise to bring fresh permission from the divine.
On a dies nefastus, the city hushes. The gods claim the day, shutting down law courts and public assemblies. Romans tread carefully—bad omens and unfinished business hang in the air.
