C-3PO, sometimes spelled C-3P0, See-Threepio and often referred to as Threepio, was a bipedal, humanoid protocol droid designed to interact with organics, programmed primarily for etiquette and protocol. He was fluent in over six trillion forms of communication, and developed a fussy and worry-prone personality throughout his many decades of operation. After being destroyed and discarded on the planet Tatooine before 32 BBY, C-3PO was rebuilt; his salvaged nature gave him special qualities that distinguished him from similar droid models. Along with his counterpart, the astromech droid R2-D2, C-3PO constantly found himself directly involved in pivotal moments of galactic history, and aided in saving the galaxy on many occasions. C-3PO considered various droids and organics to be friends of his, and was very dedicated to them, as well as to any master that he served.