GENERAL KNOWLEDGE

Detailed explanation-1: -By 650 BCE, the Zoroastrian faith, a monotheistic religion founded on the ideas of the philosopher Zoroaster, had become the official religion of ancient Persia. Later Judaism and then Christianity came to Persia via Mesopotamia, with both developing vibrant faith communities in Persian lands.

Detailed explanation-2: -Zoroastrianism is one of the world’s oldest known living religions and has its origins in the distant past. It developed about three and a half thousand years ago from the ancient Indo-Iranian religion that was once shared by the ancestors of nomadic herding tribes that later settled in Iran and northern India.

Detailed explanation-3: -The Arab invasion abruptly brought to an end the religious domination of Zoroastrianism in Persia and instituted Islam as the official religion of the state.