National calendar and Cyrus Day

Familiarity with Haft Aban, the popular day of Cyrus the Great

Familiarity with Cyrus the Great Day, November 7th is the day of Cyrus's commemoration, and many Iranians come to Pasargad every year on this day.. But according to which historical sources Haft Aban goes back to Cyrus the Great? An inscription was discovered in the excavations of Babylon, belonging to Nabonid, the last king of Babylon…