It originally came into existence during Bloc 3.0. When the reset ending in Nuclear Holocaust came, they did not reform as an alliance.
The second incarnation of The High Council was formed on June 17, 2015 when Vader gave Qonos temp leader. The alliance was shortly changed to THC and killed old THG.
In 3.9 THC became the largest alliance in the game with over 150 members.
THC is currently a stable 100+ member alliance that draws and tries to protect its members.
It was involved in the /pol/harbor war, siding with BAMF, Brotherhood of Zion and Brotherhood of Nod.