Are Islam and zoroastrianism the same religion?

Answer 1

"Zoroastrianism /ˌzɒroʊˈæstriənɪzəm/, also called Mazdaism and Magianism, is a religion and philosophy based on the teachings of prophet Zoroaster (also known as Zarathustra, in Avestan) and was formerly among the world's largest religions.[1] It was probably founded some time before the 6th century BCE in the eastern part of ancient Greater Iran.

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 alwaysimmanent 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, primarily from the 9th to 11th centuries.

In some form, it served as the national or state religion of a significant portion of the Iranian people for many centuries. The religion first dwindled when the Achaemenid Empire was invaded by Alexander III of Macedon, after which it collapsed and disintegrated[2]and it was further gradually marginalized by Islam from the 7th century onwards with the decline of the Sassanid Empire.[3] 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. It has no major theological divisions (the only significant schism is based on calendar differences), but it is not uniform. Modern-era influences have a significant impact on individual and local beliefs, practices, values and vocabulary, sometimes merging with tradition and in other cases displacing it."

-Wikipedia

Basically; Zoroastrianism founded some time before 600 BCE (Before Common Era -Before Christ-) but Islam founded in ~600 CE (Common Era) which means there is 1200 years difference between them. They can not be same.

Answer 2

In spite of some common elements, they are not the same religion. Judaism and Christianity, from which Islam sprang, were probably influenced by Zoroastrianism in the centuries following the Babylonian Exile. Further, direct influences from Zoroastrianism to Islam have also been detected.