dec 21, 75000 BC - 2306 IE

Description:

The Toba catastrophe took place, exterminating most of the Earth's population, Isu and Humans alike (c. 75000 BCE).

The Toba Catastrophe, also known as the First Disaster, the Toba Disaster, or the First Catastrophe, was a cataclysmic event during human prehistory, dated to 75000 BCE, or 2306 of the Isu Era, which saw the near total extinction of both humanity and the Isu, who were involved in a military conflict at the time.

In modern times, the disaster was often misconceived to have been the eruption of a super-volcano, but was in actuality caused by a coronal mass ejection. A second, equally powerful, but ultimately less destructive coronal mass ejection took place in the year 2012.