Socialist Appeal and the International Marxist Tendency (IMT) have a long heritage and history, going back many decades to the traditions of Marx, Engels, Lenin, Trotsky, and Ted Grant. Socialist Appeal is the continuation of the Militant Tendency, which was founded by Ted Grant in 1964 to provide a Marxist voice for workers and youth. The Militant Tendency later spead worldwide to create the largest international revolutionary organisation since Trotsky's Left Opposition, and in Britain the Militant played a leading role in various struggles throughout the 1970s and '80s, including the fighting campaigns led by the city councilors in Liverpool and the national Anti-Poll Tax campaign against the policies of the Thatcher government.
The sections below provide a range of articles that give a thorough background to the history of Socialist Appeal and the IMT.
International Marxist Tendency
Wikipedia entry on Socialist Appeal