Domains: Hearth fire, warmth, home.
Era of ascension: Age of Craggus (~41,000 years ago). Cohort: dead. Died: Lost Ages (~30,000 years ago), when the Laughing Plague emptied settlements and the hearths — literal and theological — went cold.
Worshipped by: The domestic traditions of Craggus-era civilization — those who maintained households, raised children, kept the fire through winter. His domain was explicitly different from the forge-fire gods (Kaerath of the Golden Age); Solek was the fire you kept to live, not the fire you used to create. No living culture maintains his worship. (The worships edge is authored downstream on the worshipper, not here.)
Solek rose because the Long Winter had made hearth-fire survival rather than comfort, and the intensity of that survival generated unusual religious fervor around the domestic flame. His theology was the simplest of the Craggus-era deities: keep the fire burning, and the family lives. When the Laughing Plague emptied households faster than the fire could be maintained for, the faith structure that depended on surviving families collapsed with them.