Gaea world: A world lush with life, a Gaea world is a very rare world indeed within the Pact. Due to some unknown factor, any life that grows on this planet does so at an increased rate, and is healthier and happier than normal. Could it be some emission from the planet? Maybe something filters down with the light through the atmosphere. Nobody is sure. But what they do know is that all population growth on this planet is doubled the normal rate, and the maximum PU is 4,500(due to the abundant food sources and such).

Granyork Civil War: Located near the Saipan Combat Region, the megaplanet Granyork had grown in population relentlessly until 5,800 the population had peaked at nearly one trillion human beings. The location of the planet so close to Dionii activity had many in the Pact government worried for there was a time that the incredible GDP of Granyork alone fueled the wars with the Dionii all by itself. In 5,890 a remarkably brutal civil war broke out among the planets' various factions, which ended in a self-inflicted nuclear holocaust. Ecologically devastated and unable to support technological civilization, the Pact of Humanity began the costliest evacuation in its entire history, trying to move billions of its citizens to nearby worlds. This relocation plan fueled a rapid expansion of the six nearby Clusters by adding billions to their local populations but was the most expensive operation ever in the Pact's long history.

Grathi Invasion: Located far outside Known Space, the Grathi, an aggressive alien centipede species, began an unstoppable invasion of Pact space in 6,775. Using some kind of advanced teleporter technology, the Grathi overran three dozen sectors and annihilated nearly 400 billion Pact citizens in an orgy of destruction. This event triggered the virulent backlash against aliens within the Pact of Humanity and the invasion was only stopped when the Grathi fell sick due to some human-borne pathogen.