400 BBY

A Hutt Jedi hopeful, Beldorion the Splendid, travels to Nam Chorios and discovers the planet's crystal energy enhances his Force powers. The Hutt sets himself up as a local dictator.
The New Essential Chronology; Planet of Twilight.
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The Barabel race begin their written history.
Geonosis and the Outer Rim Worlds.
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A varmigio mining colony is established on the planet Karra. When none of the material is found, the colonists are abandoned there.
Star Wars Adventure Journal #1: "Stranded".
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385 BBY
Jedi Master Ikrit travels to Yavin 4 to research the Massassi people and discovers the Golden Globe, in which the spirits of Massassi children were trapped millennia ago by Exar Kun. He realizes he cannot break the curse and places himself in a Jedi trance to await someone who can free the spirits.
Junior Jedi Knights: The Golden Globe, via The Completely Unofficial Star Wars Encyclopedia.
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380 BBY
Corellian Jedi Keiran Halcyon stops the Selonian sect known as the Afarathu.
I, Jedi, via Time Tales.
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350 BBY
The Trade Federation is established.
The Essential Guide to Alien Species.
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340 BBY
Jedi ship Ch'unthor crashes on Dathomir.

Yoda and several Jedi are repelled by the Witches of Dathomir while attempting to recover the Ch'unthor.

The Courtship of Princess Leia.
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