What an Icon is
The world, both in the past and the present, has been defined in large part by extraordinary people and creatures. The most extraordinary of these extraordinaries are remembered for the deeds they accomplished, so much so that the deeds and the person become intertwined. These people become known as icons. The term itself arose in the first age, nominally from a quote by the Wizard King:
“I have become the very symbol of my kingdom. Iconic, if you will. Without me, there is no kingdom.”
Egomaniacal, to be sure, but the term seems to have stuck. Icons seem to rise spontaneously. Some Icons become Iconic because of their sheer longevity, like the Lich King or the Great Wyrm. Others are merely bearers of an Iconic Title which is passed down from one holder to the next, such as the Dwarf King and the Archmage. And some merely arise when history looks set, and change the course of the future forever, as is the case of the Champion or the Evoker.