The Claatuvac Guild was a group of Wookiee cartographers and navigators based out of the city of Kachirho on Kashyyyk. They had information on a number of hyperspace routes known only to them, and were responsible for discovering the other bodies of the Kashyyyk system, including Alaris Prime, before the Galactic Republic reached it. The Guild maintained a base in Tree Vikkilynn; a sealed vault contained the guild's navigation data center, powered independently by a generator. The vault included data input and analysis stations as well as data stacks with info stored in indigenous manufactured HoloGrids.
By 19 BBY, Gumbaeki was the Master of the Guild, with Chak as an apprentice. In the last days of the Clone Wars, Separatist forces launched an assault on Kachirho in order to capture the Claatuvac archives and discover information on previously unknown hyperspace routes. The routes would highly benefit the Confederacy of Independent Systems, especially the Trade Federation, in their conquest for galactic control.
After the Galactic Republic was replaced by the Galactic Empire, Gumbaeki decided to hide the Guild's data, hoping to protect it from the tyrannical Empire. The Guild members copied the hyperspace routes to separate data chips, which were then split among a small handful of Wookiees. This way, the Guild hoped that Empire would never learn its secrets. The Wookiee Chewbacca, who would become the smuggler Han Solo's first mate, was one of the Wookiees given the data; he shared this information with Solo, allowing the pair to become accomplished smugglers. Chewbacca later entrusted it to the Rebel Alliance as well, who put the information to great use in its battle against the Empire.
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