Found a reference to it in the EQ2 forums https://forums.station.sony.com/eq2...the-shissar-knew-of-thier-fates.425177/page-7
That particular image has origins in EQII. It is supposedly a calendar or timeline of sorts. http://www.zam.com/wiki/War_of_Zek_(EQ2_Lore) That 'erudite' symbol can be found upon doors and other objects within Erudin, Paineel and the Hole. So its not illogical to assume its related to Erudites. However, the same symbol can also be found in various places outside of Odus -- within Neriak for example: Links to a couple threads, archived here, on the subject of those particular symbols in EQ: https://forums.station.sony.com/eq/index.php?threads/whats-the-lore-behind-this-sigil.197894/ https://forums.station.sony.com/eq/index.php?threads/symbology-in-eq.60278/ Can also Google ghaz's plight and/or chelsith stone and find quite a bit more related information.