The 2014 Dark Horse comic series Darth Maul: Son of Dathomir is one of the few stories that's actually part of both the EU and the new Disney canon. But Lucasfilm hasn't made it abundantly clear as to why. To help clear things up, check out the video below.
(A preemptive note: this video briefly addresses Filoni's Clone Wars, which produces a variety of reactions from EU fans. The video is *not* about whether that show neatly fits into the continuity of the EU. It's about the *fact* - for better or worse - that Lucasfilm is the entity that decides canonicity)
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