The Spring Equinox is the dawn of the new zodiacal year in the Northern Hemisphere. The equinoxes are the two times during the year when the dark of night and the light of day are in balance or equal. Another name for the Vernal Equinox is Ostara, from the name of a German Goddess of fertility, Oestarae. She is the deific equivalent of the Greco Roman goddess, Aurora, the personification of the sunrise. Consider that the Sun rises in the East and her name is where East and Easter both come from. The Christian Easter date was decided by the Council of Nicaea to fall the first Sunday after the first full Moon occurring on or after the March Equinox. This effectively removed its observance from conflicts with either Ostara or Passover.