The competition between the two clubs had roots in more than just a simple sporting rivalry.[1] It has as much to do with Northern Ireland as Scotland and this can be seen in the flags, cultural symbols, and emblems of both clubs.[14] It was infused with a series of complex disputes, sometimes centred on religion (Protestant and Catholic), Northern Ireland-related politics (Loyalist and Republican), national identity (British or Irish Scots), and social ideology (Conservatism and Socialism).[15]