Zoroastrianism

It depends on what you define as "the Persian religion" and what you define as "the Greek religion".

Persian Religion: Islam | Greek Religion: Ancient Greek Mythology

There are no similarities between Persian main religion (Islam religion) and the old Greek religion.

Persian Religion: Islam | Greek Religion: Greek Orthodox Christianity

However, the current main Greek religion is Christianity. Refer to question below for the similarities between Islam and Christianity.

The main similarities are:

1. Both are widely believed religions.
2. Both believe in God's angels.
3. Both believe in the last Day of Judgment.
4. Both believe in Paradise/Heaven and Hell.
5. Both believe that no one enters Paradise/Heaven by own deeds/merit but rather by God Mercy and forgiveness.
6. Both believe in eternal life after earthly death.
7. Both forbid adultery, robbery, unjustified killing, cheating and lying.
8. Both religions are similar in practicing mutual respect to their believers. Quran says (meaning English translation): ".... You will find the nearest in love to Muslims those who say 'we are Christians'. That is because amongst them are men devoted to learning and men who have renounced the world and they are not arrogant. And when they listen to the Quran revelation received by the Messenger (Muhammad), you see their eyes overflowing with tears because of the truth they have recognized. ... So because of what they said, Allah (God) rewarded them ...." [Quran, chapter 5, verses 82-86]

Persian Religion: Zoroastrianism | Greek Religion: Ancient Greek Mythology

Zoroastrianism and Greek Mythology have very few similarities, like multiple gods and demigods and a belief in prophecy.

Persian Religion: Zoroastrianism | Greek Religion: Greek Orthodox Christianity

Zoroastrianism and Greek Orthodoxy have very few similarities, like worship of a single powerful god (even though Zoroastrians accept the existence of other gods - monolatry), the use of icons in veneration of holy men, the concept of prophets, the concept of an apocalypse, religious-nationalism, and ideas concerning heaven and hell as well as a powerful demon who rules hell.

First, let's discuss a bit what the word zodiac actually means. It comes from a Greek phrase meaning "circle of animals" ("zodiac" is actually the "animals" part of that) and represents the constellations, half of which are named after animals (the others are people, mythological beasts, or objects) through which the Sun appears to pass over the course of a year.

The twelve traditional "signs" (constellations) of the zodiac are:

Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius and Pisces.

However, astronomers call the path the Sun appears to trace in the sky the ecliptic. The ecliptic actually passes through a thirteenth constellation (using the modern definition of constellation, i.e. a particular defined patch of sky, not just an asterism, a pattern formed by bright stars). This constellation is Ophiucus. It also "just misses" a constellation called Cetus. Some people therefore consider Ophiucus and Cetus part of the zodiac as well, which kind of messes up the term, because Ophiucus represents a man and Cetus represents a sea monster, dropping the proportion of "animals" below one-half. If it helps any, Ophiucus is a man holding a snake (so it's partly an animal), and Cetus is usually called "the whale" today even though its name refers to a specific mythological sea monster which was not, in fact, a whale.

Since the two groups lived side by side in Babylonia, there may have been some borrowing in language or other minor matters. But in terms of beliefs, the two are quite different.Judaism, according to tradition, has always been monotheistic. Even at the height of the unfortunate spread of idolatry among the less-loyal Ten Tribes, there were thousands who remained loyal to God (1 Kings 19:18).

(See: Judaism and monotheism)

The Zoroastrians, however, believed in two gods, not one. The Jewish Sages who redacted the Talmud in the early centuries of the Common Era lived in Babylonia, witnessed the practices of the Zoroastrians, and recorded this fact (Talmud, Sanhedrin 39a). In addition, Zoroastrianism is unlike Judaism in that:

• its deity is not immanent
• it believes in worship through intermediaries, who are themselves "worthy of worship"
• evil has its own creator, Angra Mainyu or Ahriman, which had always existed
• some of its adherents believe in a self-creating universe
• some modern scholars see it as a form of pantheism
• it has "fire-temples," with worship in the presence of flame
• its adherents are not required to marry within their faith
• some Zoroastrians dispose of their dead through ritual exposure to the open sky, while some others cremate the dead
• dogs are considered sacred
• such creatures as snakes, ants and flies were "not created by the creator of good"
• it includes a virgin birth, in which its messiah will be conceived without sexual penetration.

It is monotheistic but not as hard core as Judaism etc. Zarathustra saw in his "vision" that Ahura Mazda wanted him to worship him and him only. So originally Zarathustra, the founder of Zoroastrianism, wanted people to worship ONE GOD. Other deities sneaked into the religion later. After In a way it is also dualist because of good vs. evil. Ahura Mazda vs. Angra Mainyu. What you need to know about Zoroastrianism is that it influenced a lot of religions such as Christianity. The three wise men at Jesus's birth were Zoroastrian and so on.

Correction: Zoroastrianism did not influence Christianity, Judaism's Torah was the kicker that explained that a Messiah would be born of a Virgin; therefore, leading the Wise Men to Christ's birth by their knowledge of the Old testament (Torah) books such as Isaiah, Micah, Jeremiah etc ... so if the Wise Men were going off of predictions by the Torah, which was already in full form, and the Birth of Christ would then spring Christianity, and Zoroastrianism doesn't fall into the origin of the Christian faith, it does fall into the category of taking certain beliefs of Judaism and molding them into a different belief system that imitates a belief centered around one supreme God.

"But you, O Bethlehem Ephrathah, are only a small village among all the people of Judah. Yet a ruler of Israel will come from you, one whose origins are from the distant past." - Micah 5:2 "Therefore the Lord himself shall give you a sign; Behold, a virgin shall conceive, and bear a son, and shall call his name Immanuel." - Isaiah 7:14