Original article by Zatharel
In 2014 I started a project named "Ninth Circle", created to force the player to go through nine seemingly identical rooms in order to find a way out.
After designing pieces of that old map, such as the main "eternity" room and the old sand map start (no longer in use, instead replaced with the drop) I started connecting them, and they became a map. Something was wrong though, as I hadn't really been following the original theme, so I tweaked a lot and ended up with Eternity, a simulation of a realm of imprisonment.
In August 2014 I submitted the map for review, and after that review I did a lot of editing. The most notable changes were the replacement of the sand area with a new drop and the main room gameplay change, which made it so one doesn't have to just guess a number but rather has to look for digits and (based on clues) figure out the entire number.
Finally, the map was put into FFA on the 21st of February 2015. Chronologically the first person that isn't me to have completed this map is rickyboy320, who was the penguin who put the map in FFA in the first place (thanks mate).