two egyptian and persian ancient hymns :mehryasht of avesta & akhenaton

amonhotep iv, one of egypt's most famous pharaohs, has been composer of hymns in praise of the sun or sun god, which remains in inscriptions from fourteenth century bc. amonhoteb stone inscription is the oldest document in which, at the first time, he has invited people to monotheism. mehr yasht is second long yasht, in praise of sun, mehr or sun god, remains from one thousand years bc. this paper introduces the life of akhenaten, and then compares similar content of two hymns. this comparison shows that god of aton is eternal, creator, administrator and somewhat monotheistic or pantheistic god, but mehr (one of iranian gods) although is not the sun & creator, but is observer of the world and supporter of the righteous.