Zoroastrianism and Hinduism are ancient sister religions that originated among the same group of people and were settled in central and south Asia: Persia and India. Zoroastrianism believe in a never-ending battle between good and evil — a contest between the religion’s God, Ahura Mazda, and an evil spirit, Ahriman. Believers have the freedom to make good or bad choices; they were exhorted by Zoroaster to think good thoughts, say good words and do good deeds. Parsis believe in one God, called Ahura Mazda and share a common heritage with sanatna dharma religion. The Zoroastrians worshiped nature gods such as Mitra or Surya, the god of light. These people did not have temples. They worshiped on the tops of the mountains. Zoroaster was a prophet around 1400 to 1000 BC who reformed the ancient religion. He propagated such principles, which are based on good thoughts, good speech and good deeds. He insisted on the belief in Ahura Mazda” Angra Mainyu (Angra means supreme power. Mainyu) is the evil spirit. Demons help him. The followers of Zoroaster spread this religion all over Persia. His teachings “Gathas” became sacred to those people. The book is a part of ‘Avesta’. The ancient Parsis were farmers. They used to grow wheat, vegetables etc. They made underground canals for irrigation, so that the water did not dry up due to sunlight. They built roads to connect major cities. They had trade relations with China and India. The empire was divided into provinces. The provinces were controlled by satraps. These satraps were subordinate to the emperor. They had an intelligence organisation. Its employees were considered, the eyes of the emperor and used to convey news of different places & people to the emperor.
From 155 BC to 225 AD, this kingdom was under Parthianus. The Parthian Empire, also known as the Arsacid Empire, was a major Iranian political and cultural power in ancient Iran from 247 BC to 224 AD. Parthia, is an ancient land corresponds roughly to the modern region of Khorasan in Iran. He had to constantly fight with Timnus. Later Ardashir defeated Parthianus. Ardashir was the founder of the Sasanian empire. He overthrew the Parthian dynasty and established the Sasanian dynasty. Afterwards, Ardashir called himself “shahanshah” and began conquering the land that he called Iran. The country was named after Ardashir’s grandfather, and was called Sansan This dynasty ruled Persia from 224 AD to 641 AD. Around 300 AD through Timnal, various religious wars started. The Parsis had to face severe hardships due to the propagation of violent Islam. The process of loot & rape and killing of innocent Parsis, was started by the followers of islam. Parsis had to suffer several tortures. In about 800 AD, they had to leave their country and take refuge in foreign countries. In India, parsis settled in Gujarat. They settled in different other countries like England, America, Australia.