In a study published in the journal Iran, researcher Gad Barnea has uncovered new evidence suggesting that Zoroastrian religious practices were more prevalent and left a deeper imprint on surrounding communities than previously recognized. The study complements the current body of knowledge on Achaemenid-era Zoroastrianism (AZ) with data gathered from Jewish sources outside Iran. These include documents referencing the building of a Zoroastrian-style temple, Zoroastrian magi priests, and a fire altar located in a Jewish temple.