A day in the Roman calendar and seven days before it. It appears that the term applied to the day on which the Sun passed the points of the Equinoxes and the Tropics, and that the seven days constituted the orbs preceding the Sun's crossing of the cusps of the four cardinal signs or angular houses. Shakespeare refers to the baleful influence of "The Ides of March" - evidently the last seven degrees of Pisces, or of the Twelfth House.
ASTROLABE ENCYCLOPEDIA
