Revolution
Following their presumed extiontion over 150 years prior, an unprecedented number of dragon sightings and attacks shocked the world as a vast number of chromatic dragons seemed to have risen from nowhere. During this period, no civilization was safe, and the chromatic dragons nearly destroyed them all, the only ones who were promised to be spared, were those who swore fealty to the enigmatic Solidarity of Tiamat. This period ended in 242 AB following the murder of The Dragon Queen at the hands of a coalition of adventurers.