داستان هوشنگ و نهادن جشن سده

Hooshang, discovers fire and its many potential benefits. Then he worships through this precious element to God. This is the beginning of many professions and people start to live a more comfortable life under his rule and wisdom. He then makes canals to bring water near human dwellings.
The very day he discovered the fire remains a holly fiest, the fiest of Sadeh, as a legacy of King Hooshang.