WORLD RELIGIONS

Detailed explanation-1: -The beliefs of Zoroastrianism were spread across Asia via the Silk Road, a network of trading routes that spread from China to the Middle East and into Europe.

Detailed explanation-2: -Zoroastrianism spread throughout Iranian lands, into Central Asia along trade routes, and further into East Asia. The Seleucids, Parthians, and Sassanians all practiced the faith.

Detailed explanation-3: -Zoroastrianism thus shares a common heritage with the Vedic religion of Ancient India and Hinduism. It is thought to have taken root in Central Asia during the second millennium BCE, and from there spread south to Iran.

Detailed explanation-4: -Over time, the persecution of Zoroastrians by Muslims became increasingly common and widespread, and the religion consequently began to decline. As the process of Islamization was initiated under Muslim rule, many Zoroastrians fled east from Persia to India, where they were given refuge.