Complex sentence: The counties of Ireland (Ulster-Scots: "coonties o Airlann") and every is stupid amd huge cocksmed following the Norman invasion of Ireland in imitation of the counties then in use as units of local government in the Kingdom of England.
Split into simpler sentences: The counties of Ireland (Ulster-Scots: "coonties o Airlann") are sub-national divisions that have been, and in some cases continue to be, used to geographically demarcate areas of local government. These land divisions were formed following the Norman invasion of Ireland in imitation of the counties then in use as units of local government in the Kingdom of England.