Yoda is one of the main recurring characters in Star Wars saga, appearing in Episode V: The Empire Strikes Back, Episode VI: Return of the Jedi, Episode I: The Phantom Menace, Episode II: Attack of the Cones, Episode III: Revenge of the Sith, and both the film and the television series of Star Wars: The Clone Wars.
Most of Yoda's race and original homeworld is shrouded in mystery; however, he has been with the Jedi Order for over eight centuries. He was born 900 years before the Battle of Endor, with a powerful connection with the Force, becoming a Jedi youngling, receiving a kyber crystal by Professor Huyang, who helped him develop his lightsaber. Eventually becoming the Grandmaster of the Jedi Order, Yoda trained a variation of Jedi, such as the Younglings, and being the former Jedi Master of Count Dooku, Mace Windu, Cin Drallig, Mace Windu, Obi-Wan Kenobi, Luke and Anakin Skywalker.
Yoda visited Kashyyyk on several other occasions prior to the Battle of Kashyyyk, serving as Jedi negotiator in many incidents involving the Wookiees and their Trandoshan neighbors.
Yoda also taught outside the Master/Padawan relationship, and trained all the Jedi younglings prior to their teaming up with Jedi Masters, including Master Obi-Wan Kenobi. Kanan Jarrus, as Caleb Dume, often heard Yoda counsel "Do, or do not. There is no try." He also taught groups of younglings in the basics of Jedi training, including lightsaber instruction.