Galactic Timeline is a series of in-universe videos that provides backstory for the Star Wars: The Old Republic video game. They are presented in the form of record entries made in the Jedi Archives by Jedi Master Gnost-Dural who narrates the history of the Galactic Republic and the Jedi Order.
The narration follows a reverse order, beginning from the Treaty of Coruscant and going back to the events that led to it; it spans the Jedi Civil War, the Old Sith Wars. The animation is simple and is definitely nowhere near the level of the cinematic trailers, but they are some great stories here. Sadly, they canceled the series after 12 episodes because lack of interest. They do have brief descriptions of what each episode would have been about. Most exciting for me would have been the last episode. It would have gone back 30,000 years to the moment when philosophers and monks first discovered the force!