Arash (آرش)
The boundary between Iran and Turan was set by an arrow launched by Arash after he sacrificed his life in the act. In a war between the Iranians and Turanians over the "royal glory" (khwarrah), the Turanian general 
Afrasiab has surrounded the forces of the righteous Manuchehr, and the two sides agree to make peace. Both reach an agreement that whatever land falls within the range of a bow-shot shall be returned to the Manuchehr and the Iranians, and the rest should then fall to Afrasiab and the Aniranians. An angel instructs Manuchehr to construct a special bow and arrow, and Arash is asked to be the archer. Arash then fires the specially-prepared arrow at dawn, which then traveled a great distance before finally landing and so marking the future border between the Iranians and the Aniranians. Arash is destroyed by the shot and disappears.
Afrasiab has surrounded the forces of the righteous Manuchehr, and the two sides agree to make peace. Both reach an agreement that whatever land falls within the range of a bow-shot shall be returned to the Manuchehr and the Iranians, and the rest should then fall to Afrasiab and the Aniranians. An angel instructs Manuchehr to construct a special bow and arrow, and Arash is asked to be the archer. Arash then fires the specially-prepared arrow at dawn, which then traveled a great distance before finally landing and so marking the future border between the Iranians and the Aniranians. Arash is destroyed by the shot and disappears.