Back to the future?

Zoroastrianism
By what I have read it is likely the first religion that gave rise to the idea of a single God that was not of Earth and did not control nature. It promoted the idea of equality of the sexes and was around at least 500 years before Christianity.

Here is an excerpt from Wikipedia

In Zoroastrianism, the Creator Ahura Mazda is all good, and no evil originates from Him. Thus, in Zoroastrianism good and evil have distinct sources, with evil (druj) trying to destroy the creation of Mazda (asha), and good trying to sustain it. Mazda is not immanent in the world, and His creation is represented by the Amesha Spentas and the host of other Yazatas, through whom the works of God are evident to humanity, and through whom worship of Mazda is ultimately directed. The most important texts of the religion are those of the Avesta, of which a significant portion has been lost, and mostly only the liturgies of which have survived. The lost portions are known of only through references and brief quotations in the later works of (primarily) the 9th-11th centuries.

Zoroastrianism is of great antiquity. In some form, it served as the national- or state religion of a significant portion of the Iranian people for many centuries before it was gradually marginalized by Islam from the 7th century onwards. The political power of the pre-Islamic Iranian dynasties lent Zoroastrianism immense prestige in ancient times, and some of its leading doctrines were adopted by other religious systems.

This is also a religion that was strong on taking a wife for life. Couples for life a piece of a puzzle as to why the Hindu religion demanded the widow of a man throw herself onto his funeral pyre. Yes I know this is not Hinduism, Hinduism is next.
In my quick study I am looking at the origins that play on religion today so in a way I am going back to the future.