Great Deep Freeze

The Great Deep Freeze was a semi-apocalyptic event that occurred around Year -8500 and ended on Year 2746. During this event, the temperature on the entire planet of Donia lowered by 40 degrees Fahrenheit, freezing many locations and rendering others inhospitable. Much of the world's flora and fauna drew into hibernation for the duration of the event, lasting up to 300 years in the cold.

Not much is known about the cause of the deep freeze; just that it had occurred one day suddenly, without anyone noticing. The freeze ended up killing around 90% of the world's population after it was summoned. Those who lived through the freeze did so by hibernation, moving toward the bearable equator, by delving underground, or by embracing the snow.

To this day, several glaciers in Maliesse, the Twin Kingdoms, Ehnaroh, the Asogak Empire, and Drova still persist.