Iranian philosophy or
Persian philosophy can be traced back as far as to
Old Iranian philosophical traditions and thoughts which originated in ancient
Indo-Iranian roots and were considerably influenced by
Zarathustra's teachings. According to the
Oxford Dictionary of Philosophy, the chronology of the subject and science of philosophy starts with the Indo-Iranians, dating this event to 1500 BC. The Oxford dictionary also states, "Zarathushtra's philosophy entered to influence Western tradition through
Judaism, and therefore on
Middle Platonism."