YouTube - RTEWhat role did sectarianism play in the creation of Northern Ireland? video clip, 2021
UCD History HubJohn Redmond’s Woodenbridge speech and the split in the Irish Volunteers podcast, c.2015
Decade of Centenaries timelineFire fighters extinguishing the flames, Messrs. William Campbell & Co photograph, 22 May 1922
National Archives UKLetter from Sir James Craig to the Prime Minister open_in_new document, 29 July 1921