Comic updating scripts
It is derived from and includes most official Star Wars–related books, comic books, video games, spin-off films, television series, toys, and other media created before the date.This material expands and continues the stories told in the films, taking place anywhere from over 36,000 years before The Phantom Menace to 136 years after Return of the Jedi.Developing and extrapolating from details like this in a consistent fashion turned West End Games' Star Wars products into a de facto reference library for other developers of the EU.Around the same time, Dark Horse Comics acquired the Star Wars license previously owned by Marvel and used it to launch a number of ambitious sequels to the original trilogy which began with the popular Dark Empire series.At the same time as Dark Empire's release in the early 1990s, Bantam Spectra published Timothy Zahn's The Thrawn Trilogy.
The Expanded Universe is generally considered to have begun with Alan Dean Foster's February 1978 Star Wars spin-off novel, Splinter of the Mind's Eye, although technically it began in October 1977 with the story The Keeper's World, in Marvel Comics' Pizzazz magazine.
At that point, the bulk of the Expanded Universe has detailed the Star Wars universe after the end of Return of the Jedi, as numerous topics, including the rise of the Galactic Empire, the personal histories of Anakin Skywalker and Emperor Palpatine, and the Clone Wars had been declared off-limits by George Lucas prior to the development of his prequel trilogy and related material.
It was decided in the late '90s that using the Empire as the villains had become repetitive and monotonous.
Some of these creatures have made it into film, while others, because of the way stories unravel, have not (so far). For once something is created, no matter what the context, it takes on a life of its own." A turning point was reached when West End Games began publishing the Star Wars roleplaying game in 1987.
In order for players of the roleplaying game to create new adventures, West End Games needed to provide supplemental material describing the Star Wars universe in previously unknown detail and to make it self-consistent and coherent.