Bloody Sunday (1921) all had been killed or fatally wounded in Belfast. At the time the day was referred to as "Belfast's Bloody Sunday". However the title of "Bloody Sunday", is now more commonly given in Ireland to events in Dublin in November 1920 or Derry in January 1972. A strict curfew was enforced in Belfast after the violence, to try to ensure the Orange Order's 12 July marches passed off peacefully. Directly after the violence, on 11 July, the Commandant of the IRA's 2nd Northern Division, Eoin O'Duffy, was sent to Belfast by the organization's leadership in Dublin to liaise with the
Bloody Sunday (1972) (also of Irish descent) wrote the lyrics to the Black Sabbath song "Sabbath Bloody Sabbath" on the album of the same name in 1973. Butler stated, "…the Sunday Bloody Sunday thing had just happened in Ireland, when the British troops opened fire on the Irish demonstrators… So I came up with the title 'Sabbath Bloody Sabbath', and sort of put it in how the band was feeling at the time, getting away from management, mixed with the state Ireland was in." The Roy Harper song "All Ireland" from the album "Lifemask", written in the days following the incident, is critical