Shallash was an historic figure in the Tellarite culture, the second liberator of the Tellarite people.
In 2161, Captain Jonathan Archer included a reference to Shallash in a speech he prepared for the signing of the Federation Charter. Before delivering the speech, Archer had difficulty pronouncing the name correctly, referring to him as "Challash". (ENT: "These Are the Voyages...")
This character was only mentioned in dialogue.
According to the novel Losing the Peace, "The Shallash Epics (β)" were a classic work of Tellarite literature about the legendary liberator.