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Northern Ireland - Wikipedia
Northern Ireland | History, Population, Flag, Map, Capital, & Facts
Why Is Ireland Two Countries? | Britannica - Encyclopedia Britannica
History of Northern Ireland - Wikipedia
Northern Ireland - Wikiwand
Brexit: What is the new Northern Ireland trade deal? - BBC
Portal:Northern Ireland - Wikipedia
NI 100: Tracing the history of the 100-year-old Irish border
The Troubles: What led to Northern Ireland's conflict? - BBC
Northern Ireland split from Ireland and signing of Good Friday ...