Shakespeare never intended the play to be historically accurate. In fact, he clearly expected the actors to appear in Elizabethan dress. Furthermore, he gives Rome the medieval invention of the mechanical clock, a notorious anachronism. However, Shakespeare's Romans share a distinct cultural heritage and society, including Roman society's implicit ideals and assumptions. When Antony calls Brutus, "the noblest of the Romans," he is referring to the specific "Roman" virtue, associated with the Republican government Brutus dies defending. The protagonists in the plot are never able to overcome the pressure of the Roman values, and thus are not completely free to invent themselves, relying instead on the cultural values provided.