Is the Persian religion founded by Zoroaster; taught that humans had the freedom to choose between right and wrong, and that goodness would triumph in the end.
Zoroastrianism is an ancient Persian religion founded by the prophet Zoroaster (or Zarathustra) around the 6th century BCE. It is a dualistic faith that emphasizes the struggle between good and evil, with the ultimate goal of achieving cosmic balance. Zoroastrianism has influenced many Western religions and philosophies.
The three most common religions in eastern Asia would be Hinduism, Buddhism, and Islam. Hinduism is mostly concentrated in the areas around India, Islam is predominant in Afghanistan, Pakistan, and China, and Buddhism is concentrated in southern Asia, below China.Source: http://en.wikipedia.org/wiki/File:Religion_distribution.png
Christianity, Islam and Judaism are thought to be the main religions because they agree in heaven, hell, and judgement day, and that they all descended from Abraham. The main religions around the world not including the ones listed above are Buddhism Hinduism The last one is personal preference of Sikhism, Atheism, Shinto or Pagan.
Numerically, Muslims are most likely to represent the largest group in Asia. Their total number is around 1300,000,000. Hindus are second with some 870,000,000 or more, followed by Buddhists with some 330,000,000 and a close fourth is Christianity with some 300,000,000 and lastly, the Chinese folk religions and beliefs with probably 235,000,000. Other smaller religions include Siks, Confucians, Jains, Jews, Zoroastrians, Shintos, Yaresan, Bahais etc....