This document provides an introduction and first chapter to a dissertation on the threat of revolutionary terrorism in early 20th century Russia. It defines terrorism as using violence or threats of violence to further a revolutionary cause when open warfare is not possible. The introduction discusses the origins and growth of revolutionary groups in Russia in response to political and social frustrations under the autocratic tsarist regime. It argues that while terrorism on its own did not destabilize the state, it did weaken the government psychologically and hasten its downfall through assassinations of officials.