Forum:SH:Everything we know about The Old Republic era in Canon

Although the Knights of the Old Republic series is still active via the current MMO, all material from the series has been labeled Legends material and is no longer considered part of the canon. Because of this, the Old Republic era has been left largely unexplored. However, we have been receiving bits of information on an occasional basis. As such, I figured it would be very useful if we created a single list of information of everything we know about this era thus far. This could be a useful place to visit (a general hub of information) when writing or editing canon articles set in this era, especially with rumours regarding an Old Republic television series currently circulating.

What we know

 * Unlike in Legends, the Old Republic is a separate entity from the Galactic Republic, the Old Republic's successor. According to at least one character in Star Wars: Episode II - Attack of the Clones, the Old Republic was dissolved approximately 1000 standard years before the Clone Wars. Like its successor, its capital world was Coruscant (birthplace of the human race). The Jedi Temple was constructed on a Sith shrine.
 * According to Obi-Wan Kenobi during the original Star Wars, the Jedi Knights were the guardians of peace for the Old Republic and the Galactic Republic for over a thousand generations before the rise of the First Galactic Empire.
 * The Sith homeworld of Korriban is now Moraband. It was the final resting place of Darth Bane.
 * Darth Bane is canon, though his physical appearance has been largely redesigned for the new canon. He was the sole survivor of the destruction of the Sith at the hands of the Jedi. Believing that the Sith in-fighting was the cause of their destruction, he created the Rule of Two. He died approximately 1,000 years before the Clone Wars, presumably around the time of the end of the Old Republic. His corpse rested on Moraband. It is unknown who his apprentice was.
 * Malachor V is now Malachor. On Malachor was an ancient superweapon that could be activated by a Sith holocron. A massive Sith temple was built on Malachor. The temple was the location of battle known as the Great Scourge of Malachor. In said battle, the Jedi assaulted the temple, but the superweapon was activated, killing everyone present (Jedi and Sith alike).
 * The design of the Hammerhead corvette was inspired by the Hammerhead-class cruiser (which, in Legends, was a ship from the Old Republic era). According to the Databank entry of the Hammerhead corvette, it received its name from an antiquated design originating centuries before the early years of the Galactic Civil War. The Hammerhead corvette is not to be confused with the similar Thranta-class corvette.
 * The crossguard lightsaber was a lightsaber design from the Old Republic era. It was used by Kylo Ren during the Force Awakens era millennia later.
 * The Amaxine warriors were allegedly a warrior people that refused to make peace with the Old Republic (or possibly an earlier Galactic Republic). They traded weapons for goods and services. Since they were unable to defeat the Old Republic, they left the known galaxy in search of a new opponent. By the time of Leia Organa's childhood, they became the subject of legend (literal legend, not Legends). During the time period between Return of the Jedi and Star Wars: The Force Awakens, a group claiming to be the Amaxine warriors surfaced but were seemingly destroyed.
 * "Ashla" and "Bogan" (the names for the light side and dark side of the Force used by ancient Jedi and Sith in Legends) were used by the Lasat people.
 * The Mandalorian crusaders fought in many wars in the Old Republic era, some against Jedi. During the fall of the Old Republic, they raided the Jedi Temple and Clan Vizsla stole the Darksaber. During the Mandalorian crusade, they devastated the planet Ubduria. The centuries of war on Mandalore reduced the once beautiful planet to a desert, giving rise to the pacifistic New Mandalorians. The remaining warriors were exiled to Concordia, where they are believed to have died out. During one of the many wars on Concord Dawn, the planet's southern hemisphere was wiped out.