In Shakespeare’s play Julius Caesar , the warning “Beware the Ides of March” is spoken by a soothsayer who warns Julius Caesar that his life is in danger on March 15.

Who said the line?

  • The exact phrase comes from William Shakespeare’s Julius Caesar (c. 1599).
  • In the play, an unnamed soothsayer calls out to Caesar in a crowd and tells him to “beware the Ides of March.”

Historical vs. fictional source

  • Shakespeare based this moment on ancient accounts that Caesar was warned by a seer named Spurinna before his assassination in 44 BCE.
  • The famous wording “Beware the Ides of March” is Shakespeare’s dramatic version, not a verbatim quote from ancient Roman writers.

What does “Ides of March” mean?

  • In the Roman calendar, the “Ides” in March refers to the 15th of the month.
  • After Caesar’s murder on that date, the phrase took on an ominous sense of warning or impending betrayal.

TL;DR: The line “Beware the Ides of March” is said by a soothsayer to Julius Caesar in William Shakespeare’s play Julius Caesar , inspired by historical reports of a seer named Spurinna.

Meta description: Learn who said “beware of the Ides of March,” how it appears in Shakespeare’s Julius Caesar , the historical roots behind it, and why March 15 became such an ominous date.