The Workers' Party is an Irish republican, Marxist–Leninist communist party active in both the Republic of Ireland and Northern Ireland.
Tomás Mac Giolla served as leader of the Workers' Party for over a quarter of a century
Sinn Féin is the name of an Irish political party founded in 1905 by Arthur Griffith. It became a focus for various forms of Irish nationalism, especially Irish republicanism. After the Easter Rising
Workers' Party (Ireland)
…Marxist–Leninist communist party active in both the Republic of Ireland and Northern Ireland. The party can be considered a direct descendant of the original Sinn Féin organisation founded in 1905 by Arthur Griffith. It took its current form in 1970 following a division within Sinn Féin, in which the majority faction followed the…
Arthur Griffith, founder (1905) and third president (1911–17)
President of Sinn Féin Éamon de Valera resigned from the party in 1926 and led the rump of the membership out of the party and into Fianna Fáil, an event which left Sinn Féin crippled for decades
Gerry Adams, President of Sinn Féin from 1983 to 2018