I'm playing a 867 start as the Romans and I'm curious as to when the Seljuks might appear and what conditions need to be necessary for them to appear and basically wreck shiz in the middle east. Its about 930 and the still Abbasids provide a decent challenge if you make them a lucky ruler so that they don't immediately collapse but I'm just curious if/when the Turks will come steamrolling their way through the area?