Earthfall

Description
Earthfall is the name given to the cataclysmic event in which a swarm of meteorites impacted Golarion in -5293 AR. It resulted in the destruction of the human empires of Thassilon and Azlant, which were consumed by earthquakes and massive tidal waves, and the creation of the Inner Sea. The clouds of dust thrown up by Earthfall's impact settled in Golarion's upper atmosphere and blotted out he sun for 1,000 years, creating the Age of Darkness.