It was monotheistic.
Until the seventh century BCE, Zoroastrianism was unique in being monotheistic.
Hinduism, Buddhism, and some smaller religions such as Zoroastrianism.
The Middle East is the birthplace of all three Abrahamic Religions, Judaism, Christianity, and Islam. Along with other religions such as Bahá'í, Druze, Yazidi, and Zoroastrianism.
Zoroastrianism, Judaism, Christianity, Islam, and Sikhism are the better known monotheistic religions.
Zoroastrianism appears to have held motheism before Judaism, but it is *very* disputed exactly when monotheism developed in the Abrahamic religions.
Judaism, Christianity, Sikhism, Zoroastrianism, & Baha'i.
Some of the World's religions include: Christianity, Islam, Buddhism, Hinduism, Judaism, Bahá'í Faith, Sikhism, Taoism, Confucianism, Zoroastrianism, many local religions (such as tribal religions), etc.The Wikipedia article "List of religions" contains a more exhaustive listing.
Buddhism Christianity Hinduism Islam Jainism Judaism Sikhism Zoroastrianism
Hinduism,Buddhism,Sikhism,Jainism,Zoroastrianism,Judaism,Christianity,Islam
Zoroastrianism one of the world's oldest monothestic religions, dated to 3500BC.
Influenced the belief on the battles between the forces of good & evil.
Just about any religion on Earth will have believers in the Middle East; the major religions are Islam, Christianity, Judaism, and - at least in certain countries - Zoroastrianism and the Bahá'í Faith.