#OnThisDay 13th December 1970, The Socialist Party of Ireland (SPI) was formed.
Unconnected with the contemporary Socialist Party, the SPI was formed by former members of Official Sinn Féin and others. It later merged with the Limerick Socialist Organisation to form the Democratic Socialist Party (DSP).
https://www.leftarchive.ie/calendar/on-this-day/12/13/#event-5655