The Iron Kingdoms - Witchfire
This information is what the average person would know regarding the history of the Iron Kingdoms. Specific Knowledge (History) check will have to be made to glean more information.
The Orgoth reigned over all of Western Immoren (excluding the Elves and Dwarves) for 600 years. When they finally left, they destroyed virtually anything associated with their society, leaving them some of an enigma to this day. Additionally, the Orgoth laid waste to a great deal of the land and cities they occupied before departing.
After the Orgoth left, the leaders of the rebellion convened in Corvis where the Corvis Treaties were drafted and the Iron Kingdoms (lands specific to humans) were created. The lands created from this treatise are as follows: Cygnar, Khador, Llael, Ord and the Protectorate of Menoth.
Citation: (Players should not reference this page unless you can keep out-of-game-knowledge to yourself!) This information was summarized from the IKCG and the Privateer Press website.