Vladimir Lenin was a Russian revolutionary, politician, and political theorist who served as the first and founding head of government of Soviet Russia.
Friedrich Engels was a German philosopher, historian, and social scientist who co-founded Marxism with Karl Marx, shaping the course of modern socialism.
Slobodan Milosevic was a Serbian politician and former president, notorious for his role in the Yugoslav Wars and subsequent war crimes charges.
Amadeo Bordiga was an Italian engineer and architect known for his contributions to the development of reinforced concrete and urban planning in Italy.