Zarathushtra, also called Zoroaster, founded the faith in ancient Persia (Iran). Believers worship Ahura Mazda – the one God. Zoroastrians believe that an individual has a choice between good and evil in life. The path for perfecting oneself is through good thought, good speech and good actions. Fire is sacred to the faith and it is always kept burning in the temple and in followers’ homes. Followers also believe in angels, heaven and hell, God and Satan, an immortal soul and the last judgement. Priesthood is hereditary in Zoroastrianism, and all religious ceremonies are led by priests. Both male and female followers are initiated into the faith through the Navjote ceremony. Initiated adherents have to follow a dress code of the faith. Shenshani, Qadimi and Fasli are three major denominations and the three calendars that followers of the Zoroastrian faith use. When each significant day is celebrated or commemorated differs depending on which denomination and calendar adherents follow.