a question for iranians

Kaveh the Blacksmith is a mythical figure of ancient Persia who leads a popular uprising of Persians (Iranians) against a ruthless Arab ruler, Zahak (Dhaka). His story is narrated in the Epic of Shahnama by the 10th century poet Ferdowsi Tousi.

He is the single most famous mythological character in resistance against despotic foreign rule in Iran. After losing 18 of his sons to Zahak's serpents, he rebelled against the assyrian ruler of the Iran and convened the people to overthrow the tyrant king and end the 1000 year-long rule. He then assembled Derafsh Kaviani which was his leather apron on a spear, called Iranians for the kingship of the Fereydoun. Later on people decorated this flag with jewels and the flag became the symbol of Iranian independence, resistance, resilience and the revolutionary momentum of the masses revolt against evil invaders.

Jashn-e mehregan is the celeberation for the Fereydoun's victory over Zahak; it is also the time when autumn rains begin to fall.