YouTube - RTEWhat role did sectarianism play in the creation of Northern Ireland? video clip, 2021
Houses of OireachtasDáil Debate: executions of four IRA leaders open_in_new speech, 8 December 1922
Decade of Centenaries timelineFire fighters extinguishing the flames, Messrs. William Campbell & Co photograph, 22 May 1922
Decade of Centenaries timelineCivilians in Belfast being searched by police photograph, 13 March 1922
RTE Century IrelandBetween armed rebellion and democratic revolution: the Irish Question in 1917 open_in_new article, 2017
National Museums IrelandThe last letter written by Seán Mac Diarmada (Sean MacDermott) letter, 11 May 1916