Fallout: History Of The Railroad

"The Railroad is one of the major factions players can join and do quests for in Fallout 4. Their sole mission is to free sentient synths from the Institute. Due to this, they are a little different from other factions like the Brotherhood of Steel, Minutemen, and the Institute because their whole organization stands as a reaction to another. They have no pre-war history and rose in response to the actions of the Institute." - click image for article