Beware the Ides of March

Cesarsa_mort
"Beware the Ides of March" – the soothsayer said to Caesar

From Wikipedia on the Ides of March:

In the Roman calendar, the term ides was used for the 15th day of the months of March, May, July, and October, and the 13th day of the other 8 months.[1].

In modern times, the term Ides of March (Latin Idus Martiae) is best known as the date that Julius Caesar was assassinated, in 44 BC, the story of which was famously retold in William Shakespeare‘s play Julius Caesar.[2] The term has come to be used as a metaphor for impending doom.

photo from wikimedia commons РVincenzo Camuccini (d. 1844), Mort de C̩sar, 1798