Tristán Marof was a Bolivian diplomat, writer, essayist, and journalist. He was Consul of Bolivia in Europe, where he was linked to the labor movement and Marxist-Leninist organizations.

The Socialist Workers' Party of Bolivia was established on 1 January, 1940, by Marof, then leader of the Confederation of Bolivian Workers (CSTB), after he was expelled from the Revolutionary Workers' Party

Revolutionary Workers' Party (Bolivia)

The Revolutionary Workers' Party is a Trotskyist political party in Bolivia. At its height in the late 1940s and early 1950s, the POR was one of the few Trotskyist parties in history to gain a mass working-class following.-Beginnings:...

 in 1938.