“Peace! Count the clock.”
It isn’t one of Shakespeare’s most memorable lines. But it is one of the Bard’s rare chronological mistakes. When the clock chimes in Julius Caesar, most readers wouldn’t bat an eyelid. Except the chiming clock wasn’t around in 44 BC, so Brutus and Cassius were far more likely to be looking at a sundial than counting chimes. Shakespeare is by no means the only writer to have made such an error.