R2-D2, pronounced Artoo-Detoo and often referred to as Artoo, was an R2-series astromech droid manufactured by Industrial Automaton prior to 32 BBY.Resourceful and spunky, the droid developed an adventurous personality during his many decades of operation.His bravery, coupled with his many gadgets, played large roles in saving the galaxy time and time again.
They were, however, separated from Organa during that time period, and got caught up in a wide variety of misadventures, ruining the gangster Tig Fromm, helping restore the Tammuz-an monarchy, and aiding the merchant Mungo Baobab in reviving his family's fortune, among other exploits.
In 32 BBY, R2-D2 was serving the Royal Engineers of Naboo aboard Queen Padmé Amidala's royal starship when the Trade Federation blockaded the planet.
His maintenance work on the ship's hull while it was under fire allowed the queen and her crew to bypass the blockade and flee the sieged world.
The war was in fact orchestrated by the Republic's Supreme Chancellor Palpatine, who was secretly the Sith Lord Darth Sidious, and who brought the conflict to an end three years in, taking Skywalker as his Sith apprentice, wiping out the Jedi, and reorganizing the Republic into a Galactic Empire.
In the aftermath of the war, R2-D2 and C-3PO were assigned to the corvette Tantive IV of Alderaan, where they served Alderaan's viceroy Bail Organa for nineteen years.
When attempts on her life were made in 22 BBY and the Jedi Padawan Anakin Skywalker was assigned to protect her, R2-D2 and C-3PO accompanied the two to Geonosis and participated in a battle that started the Clone Wars, a galaxy-wide conflict between the Galactic Republic and the Separatist Confederacy of Independent Systems.Amidala gave R2-D2 to Skywalker when he became a Jedi Knight, and the astromech droid faithfully served him throughout the war, often flying in the droid socket of Skywalker's starfighter or fighting next to him on the front lines.Inside of his cylindrical frame were many arms, sensors, and other tools that could be extended to fulfill various needs, such as slicing computers, extinguishing fires, projecting holograms, repairing starships, and flying.Along with his counterpart, the protocol droid C-3PO, R2-D2 constantly found himself directly involved in pivotal moments of galactic history.R2-D2 was then recognized before the queen for his work in ensuring the ships safety.Afterwards, R2-D2 directly served the queen, playing a decisive role in liberating Naboo and remaining with Amidala for another ten years, even as she transitioned to the role of senator eight years later.