My persona is from the Sultanate of Rum (Turkish: Anadolu Selçuklu Devleti, meaning "Anatolian Seljuk State"he term "Rûm" comes from the Arabic word for the Roman Empire.
The Seljuqs called the lands of their sultanate Rum because it had been established on territory long considered "Roman". late in the 11c ( what we call the 5c after the Prophets ascension)