For more than a hundred years, organisations pledged to promoting socialism have existed in Dublin, Belfast, and—for brief periods—other parts of the country. Sections of the International Working Men’s Association(the First International), founded in London by Karl Marx in 1864, existed for a time in Dublin, Belfast, and Cork.
http://www.kennys.ie/media/customer/Irish%20Communists%20-%20Catalogue%202015.pdf
