Answer:
Zoroastrianism or Mazdayasna has been one of the eldest persistently practiced religions around the globe. It is a quad-tendency religion based on a dichotomous metaphysics of good and bad, and an orthodox theology anticipating the final overthrow of bad with components of henotheism, paganism / materialist philosophy, as well as monotheism.
Zoroaster started teaching believers to follow one deity named Ahura Mazda. Throughout the 1990s, Russian historians found the ruins about what they claimed to become a modern Zoroastrian flame shrine at Gonur Tepe, an Iron age location in Tajikistan.