The Kingdoms of old Rhylan was an era from about CY 3900 to the time of the consolidation into a single kingdom around CY 6500. This allowed the tribes and settlers to consolidate into larger and larger enclaves, towns, and cities. After that, in CY 6514, it was transitioned to the Grand Duchy of Rhyl.
The sect of The Stonelights was based on the value of the ancient Kingdoms of old Rhylan, though in memoriam and as a place for their second and third sons to find purpose in. They often functioned as genealogists and record keepers of bloodlines for this.
Since CY 3000, the non-elf faerie kin races begins a slow withdrawal to the heart of the forest.
Pine Tribes retreat North of the Beyne River/Rhyl: The people of the “Gathered Tribes” (Early History of the Pine Tribes) were forced out of Rhyl, pushed west first in CY 2331; The “Bloodhook Despair” was the era of the first calamitous times for them. Rhyl was wild then, home to many races in small numbers. The land was bountiful and few cities existed when eastward migration en masse first happened. Faerie Burghs became Wealds for protection, and the first small kingdoms arose. Then around 6500 when Dundaria fell and the consolidation of the Kingdoms of old Rhylan, another massive wave of migration came, forced consolidation and a power struggle to really begin. Logging and resource exploitation began in earnest.
There are rumors Theodrose and the Chain Masters of the North were involved in consolidating the Kingdoms of old Rhylan into The Grand Duchy of Rhyl.