Aries is ruled by and associated with the planet Mars because Aries is considered the cardinal-fire (initiator) force that ignites (or reignites) the zodiac cycle. In Rome, Mars was seen as a military god worshipped by the legions of its soldiers. Mars was the first day of the year in the ancient Roman 10-month Calendar. At that time, the month was called Martius and winter time had no months at all.
Taurus: The Story of Zeus turning himself into a bull to seduce and rescue Europa.