ca 300 BBY

The Tofs visit the Nagai homeworld of Nagi, at the height of its civilization. The Tofs conquer and enslave the Nagai, forcing many to flee into the galaxy. They will spend the next three centuries trying to find a way to free their homeworld.
Star Wars Gamer #1: "The University of Sanbra Guide to Alien Species: The Marvel Series".
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Karia Ver Seryan, a "life witch", is born on Kerlsil.
Ambush on Corellia; Star Wars Encyclopedia.
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Shistavanen explorers discover the planet Shaum Hii and the race known as the Kian'thar.
Galaxy Guide 12: Aliens – Enemies and Allies, via Time Tales.
 
 
The Ho'Din exploit their homeworld, Moltok, for industrial purposes and nearly destroy themselves.
The Essential Guide to Alien Species.
 
 
The Bith destroy their planetary environment in a civil war. They later change their culture, repressing emotions to prevent further wars.
The Essential Guide to Alien Species.
 
 
The starship Lumrunner is constructed.
Star Wars Adventure Journal #9: "Lumrunners", via Time Tales.
 
 
 
292 BBY
Mother Rell is born on Dathomir.
The Courtship of Princess Leia, via Time Tales.
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Myrkr is discovered by the Republic
Heir to the Empire.
 
 
 
282 BBY
Tens of thousands of Houk colonists from Lijuter settle in the Lesser Cueva region of the planet Ryloth.
Geonosis and the Outer Rim Worlds.
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281 BBY
The Grand Rim Promenade is constructed on the planet Cejansij.
Spectre of the Past, via Time Tales.
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280 BBY
Berethron e Solo introduces democracy to the Corellian Empire.
The Courtship of Princess Leia.
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The Ho'Din develop organic medicines to cure themselves of the parasitic organisms plaguing their species.
The Essential Guide to Alien Species.
 
 
 
269 BBY
Merumeru, the Wookiee, is born on Kashyyyk.
Starwars.com Databank.
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