What was the year that put the Ides of March on the calendar? July 18, 2020 by Pamela Landy It was in 44 B.C. that Julius Caesar was assassinated. The date was March 15, the Ides of March. Related Answers What was a summoner or A canon’s yeoman or A franklin or A manciple or a reeve? How long has the Oberammergau Passion Play been staged? What kind of calendar do we use, the Julian or the Gregorian? Where did Our Bodies, Ourselves get its name? Who was the first man to win the tennis grand slam in the same calendar year? Where did Sherman’s March to the Sea begin and end during the Civil War?