Great Schism/Legends

Great Schism referred to several different events that led to wars between traditional Jedi and Dark Jedi.
==Schisms in history==
*First Great Schism — Led to the Legions of LettowThe New Essential Chronology
*Second Great Schism — Led to the Hundred-Year Darkness and the exile of the Dark Jedi to the worlds that became the Sith Empire
*Third Great Schism — Led to the Vultar Cataclysm
*Fourth Great Schism — Led to the New Sith Wars and a large Sith presence for a thousand yearsThe Jedi Path: A Manual for Students of the Force
Although the Great Schisms were started by splits in the Jedi Order, which led to war or a great calamity, neither the Sith War started by Exar Kun nor the Jedi Civil War started by Darth Revan were termed Great Schisms, though they were instigated by factions from the Second Schism (Naga Sadow and the Sith Emperor,The Old Republic: Revan respectively).
==Behind the scenes==
The third and fourth schisms remain largely untold. Their main appearances have been mostly in reference books such as the Essential Guide series. The fourth was first mentioned in the novelization of Star Wars: The Phantom Menace and was originally based on background notes from George Lucas for the prequel trilogy.
==Sources==
*The Essential Chronology
*The New Essential Guide to Characters
*The New Essential Chronology
*
*
*Jedi vs. Sith: The Essential Guide to the Force
*The Complete Star Wars Encyclopedia
*The Essential Atlas
*The Jedi Path: A Manual for Students of the Force
*The Journal of Master Gnost-Dural
*Nexus of Power
==Notes and references==