Complex sentence: The birth of Ballyporeen as a nucleated settlement is unknown, up until the 18th Century, Carrigvisteal (approx 1.5 km north of the village) was the main settlement node in the area.
Split into simpler sentences: The birth of Ballyporeen as a nucleated settlement is unknown. Up until the 18th Century, Carrigvisteal (approx 1.5 km north of the village) was the main settlement node in the area.