Grand Khan Dai' Ehk

The Ezlekhian civilization was created in 680, united under one Grand Khan; a legendary figure who conquered an entire portion of the continent himself and was a master of rune magicks as well as defending his territory using cleverly-designed traps. The Grand Khan Dai' Ehk was rumored to be a Genie himself, as he would not only grant the wishes of his people on whims, but overcame impossible odds to establish Ezlekh as a world power. Grand Khan Dai' Ehk would split his territory up between his six children, who were Genasi of all four elements, and most of the Khans currently descend from these ancestors (the exception to this being Khuurmag's Khan Möngönii).
Grand Khan Dai' Ehk was quite the legendary figure whose stories might possibly precede him.  He was said to have tamed an Ancient Dragon, as well as being a master of elemental martial arts through weapons he created from elementals himself.  One rumor of Dai' Ehk was that he even had power over life itself, able to create life from his power to control and mold blood.
With all of these differing legends in mind, and the fact that Dai' Ehk may not even exactly be real, to call him a myth would be an understatement

Date of First Recording

The early 800's

Date of Setting

Late 600's, early 700's