Zoroastrianism is arguably the world’s oldest monotheistic religion. It centers on the words of the prophet Zarathushtra, called Zoroaster by the ancient Greeks, and focuses worship upon Ahura Mazda, the Lord of Wisdom.
Scientology was created in 1952 by the charismatic leader and science fiction writer L. Ron Hubbard. It has been designated a religion by the United States and the UK governments for tax purposes. But it has also been called an "anti-constitutional sect" in Germany and a "dangerous cult" in France and in many parts of the United States.