Today is March 15th. In ancient Roman culture it would be the Ides of March.
The Ides were a monthly reference point falling on the 15th day of March, May, July, and October, and on the 13th day of all other months. Derived from the Latin for "to divide," the Ides originally marked the full moon.
I learned about the Ides thanks to my Oswego High School Latin teacher, Ruth Young.
In modern times, the Ides of March is best known as the date on which Julius Caesar was assassinated in 44 BC. Caesar was stabbed to death at a meeting of the Senate.
Julius Caesar was assassinated because a group of Roman senators feared his immense, unprecedented power would destroy the Roman Republic and restore a monarchy.As many as 60 conspirators, led by Brutus and Cassius, were involved. According to Plutarch, a seer had warned that harm would come to Caesar on the Ides of March.
On his way to the Theatre of Pompey, where he would be assassinated, Caesar passed the seer and joked, "Well, the Ides of March are come", implying that the prophecy had not been fulfilled, to which the seer replied, "Aye, they are come, but they are not gone."
This meeting is famously dramatized in William Shakespeare's play Julius Caesar, when Caesar is warned by the soothsayer to "beware the Ides of March."