Ancient Iranian legends attribute the discovery of lighting a fire with two stones to King Hushang of Pishdadian dynasty.
[clarification needed] Fire commemoration and worship has a long history among the Indo-Iranians, perhaps going back to the Proto-Indo-European religion.
The tradition remains among Muslim Iranians in later periods to ignite candles or turn on the light on the graves of the dead, and yet this is a common event.
Ancient Greek historians refer to the Persians' attention to the gods of the sun, moon, earth, water and fire.
Strabo's Geographica, Book XV, Chapter 3:[3] But it is especially to fire and water that they offer sacrifice.