Yoda was a 900 year old Jedi Master, who lived during the Clone Wars and the Galactic Civil War. He was known for being on the Jedi Council for many years. He trained Count Dooku, before his fall to the dark side, as well as many younglings on Coruscant. He fought in the Clone Wars, until the Clone troopers betrayed the Jedi. Before going into exile, he fought Emperor Palpatine, but lost. He then went into hiding on Dagobah. He later trained Luke Skywalker, but his training was interrupted when Skywalker left after having a frightening vision of the future. Before he died, he told Luke that he had to face Darth Vader, and that Vader was truly his father.