The history of Persia from its very beginning until today, from Cyrus the Great to Riza Khan Pehlevi — a history covering twenty-five centuries equally divided by the Arab conquest of the year 642 into a pre-Islamic and an Islamic period — has seen an uninterrupted and continuous association between Iran and Israel. Jews have been living on Iran's soil from the dawn of the first Persian empire on, as an inseparable part of Iran's national destiny and development. Jews were the eye-witnesses of all the historical events in Persia under every dynasty — the Achaemenids, Parthians and Sassanids, the Omayyads and the Abbasids, the Seljuks, Mongols, Safavids, and Kajars, under every ruler, Caliph, Sultan, Il-Khan, Emir or Shah. Jews were the contemporaries of all the manifold religious movements and sects that were born on Persian soil, such as Zoroastrianism, Manichaeism, Shiʻa, Sufism, Bahaism; they were companions of the great classical poets, of a Firdūsī, Ḥāfiz, Saʻadī, Jāmī, and of all the other great Persian masters of art, literature and philosophy who made their everlasting contributions to world culture.