Mazdakism

Mazdakism was an Iranian religion, which was an offshoot of Zoroastrianism. The religion has been called one of the most noteworthy examples of pre-modern communism.
The religion was founded in the early Sasanian Empire by Zardusht, a Zoroastrian mobad who was a contemporary of Mani (d. 274). However, it is named after its most prominent advocate, Mazdak, who was a powerful and controversial figure during the reign of Emperor Kavad I ().