Frith emerges from its sun's protoplanetary disk.
The timescale of planet Frith, from inception to destruction.
The era spanning from the origin of Frith to the beginning of recorded history.
The last common ancestor of Frith's modern reptiles and mammals lived at about this time.
A mass extinction event occurs, marking the end of the Paleozoic Era and the passing of more than 75% of Frith's species. The Mesozoic Era begins.
A thermal event marks a minor extinction, making a few dinosaur groups go extinct and allowing mammals to diversify. The Cenozoic Era begins.
By this date, Frith's continental plates had entered a recognizable configuration.
The first recognizable proto-Frithitt evolved from arboreal feline ancestors at about this time.
By this time, Frithitt inhabited the entirety of Frith. The split between "Overlight" and "Underdark" Frithitt occurred around this time.
The Crown of Krratin, among the oldest Frithitt-built structures in the world, is built during this time span.
The Kettket ethnicity migrated into the bluffs of the Vale of Krratin around this time.
Beginning with the advent of written history among the Frithitt, events are chronicled in the years of the Frithitt Age.
Frith is scoured by a meteoric storm, ending almost all life on the planet. Frithitt civilization ends.