Founded in 1924, as a socialist alternative to the largely sectarian politics of Ulster. It strove to remain neutral on the partition question, but in 1949—after the declaration of an Irish republic—it came out in favour of the constitutional link between Northern Ireland and Britain. The renewal of communal violence in 1969 heightened sectarianism and put pressure on the NILP electoral base. The establishment of new parties in 1970–1 (the Social Democratic and Labour Party, Alliance) eroded different aspects of NILP support. Thereafter it rapidly declined, surviving with minimal electoral following until 1987.
Subjects: European History — British History.