The next happened in 1972, when Ireland was split in two, North was held by the British, and south by the Irish (like it is today) and the Irish Catholics in the North were discriminated very heavily, both in public, and in parliament. So, they staged a civil rights march through Derry, which annoyed the British, who murdered a majority of these protestors, all unarmed. This caused a bit of controversey which not a lot of people are happy about to this day.
Guy 2: Which one?
Guy 1: Both.