I'm trying to piece together the history of Rahadoum. It's clear that the modern nation of Rahadoum didn't exist until around 2555 - 2560, but I can't quite figure out the prior political history of the area. My primary source is Lost Omens: World Guide; I'm unaware of the 1e resources that may be important.
What I think I understand:
- The Jistka Empire is founded in -4120 and is conquered by Osirion in -2764.
- Rahadoum is founded in 2555-2560, with the enactment of the Laws of Mortality and the end of the Oath Wars.
Unfortunately, the middle 5,000 years is somewhat murky. Although Osirian conquers the Jistka Empire, there is no mention of them ruling the area that is now Rahadoum. The timeline in the sidebar does mention Thuvian independence from Osirion, but no explicit mention is made of Rahadoum.
Who is governing Rahadoum between -2764 (when Osirion conquers it) and 2555 (when the modern state is founded)? Is it a part of Osirion? Are there other states before Radahoum?