Ides of March 2011: What are ides?

Today is March 15, also known as the Ides of March -- the anniversary of the assassination of Julius Caesar.

The ides is a word used for the 15th day of the months of March, May, July and October. It's a popular phrase in current times because of William Shakespeare's play "Julius Caesar," in which the title character is warned to beware the day by a fortuneteller.

Caesar was killed March 15, 44 B.C., in the Roman Senate when he was stabbed to death.