The faravahar was depicted on the tombs of Achaemenid kings, such as Darius the Great () and Artaxerxes III (). The symbol was also used on some of the coin mints of the "frataraka" of Persis in the late 3rd and early 2nd BC centuries. Even after the Arab conquest of Iran, Zoroastrianism continued to be part of Iranian culture. Throughout the year, festivities are celebrated such as Nowruz, Mehregan, and Chaharshanbe Suri which relate to Zoroastrian festivals and calendar. These are remnants of Zoroastrian traditions. From the start of the 20th century, the faravahar icon found itself in public places and became a known icon among Iranians. The Shahnameh by Ferdowsi is Iran's national epic and contains stories (partly historical and partly mythical) from pre-Islamic Zoroastrian times. The tomb of Ferdowsi (built early 1930), which is visited by numerous Iranians every year, contains the faravahar icon as well.