I don't know if these go, but: fastest AI Ireland?
So, I honestly have no idea what happened. In my France -> Unite HRE game I saw that Tyrone had done really well while I was waiting for England's WE to rise, so I could
get my cores.
They managed to wrestle Meath from England, conquer Connacht and Munster, and vassalize Leinster. This was really exciting, and I checked to see if they had cores, but no.
Next thing I know, they united Ireland.
EDIT: Just read the "Form Irish Nation" and it does not require cores. Good work AI Tyrone.