Passage: From 1976 to 2014, the term Expanded Universe (EU) was an umbrella term for all officially licensed Star Wars storytelling material set outside the events depicted within the theatrical films, including novels, comics, and video games. Lucasfilm maintained internal continuity between the films and television content and the EU material until April 25, 2014, when the company announced all of the EU works would cease production. Existing works would no longer be considered canon to the franchise and subsequent reprints would be rebranded under the Star Wars Legends label, with downloadable content for the massively multiplayer online game The Old Republic the only Legends material to still be produced. The Star Wars canon was subsequently restructured to only include the existing six feature films, the animated film The Clone Wars (2008), and its companion animated series. All future projects and creative developments across all types of media would be overseen and coordinated by the story group, announced as a division of Lucasfilm created to maintain continuity and a cohesive vision on the storytelling of the franchise. Multiple comics series from Marvel and novels published by Del Rey were produced after the announcement.

Question: How long did the EU last for an umbrella using Stars Wars licensed story-telling?
1976 to 2014