Ghost of Kalidria
The Calm is the period of time that marks the current era. The year is 300 AC which means 300 years After the Calm began. The reason it is called that is because monsters of the world have gone back to acting as normal or have completely disappeared from entire regions of the world.
This Calm has lead to people not learning how to swing a sword as much as well as a reduction in Adventurers and monster slayers of many kinds. Dragons still exist, as do all of the monsters of old that terrorized the world under Calisto’s control.
This however does not mean things were calm. There are still regions of the world that are at war with one another, territorial disputes and the like. Around Malatin however, things have truly been Calm and the warring of people of Kalidria has gone widely unnoticed.