Affiliation: Land of Fire
Element: Fire
Background: Founding- The Uchiha clan descended from the elder of the two sons of the Sage of the Six Paths. The elder brother inherited the Sage's "eyes", powerful chakra and spiritual abilities. When it came time for the Sage to choose a successor, he questioned the two on what course of action they would follow to bring order to the world. The elder believed that power was the way to bring peace, while the younger believed love was the way. The Sage favoured the ideal of the younger brother, and therefore designated the younger as his successor, causing the elder to be filled with jealousy and hate. From this hate came what Tobi calls the Curse of Hatred (憎しみの呪い, Nikushimi no Noroi). From the younger son descended the Senju clan who would be the eternal rivals of the Uchiha.
Before the founding of the ninja villages, the Uchiha were one of the many mercenary clans for hire. Because of their Sharingan as well as battle prowess, the Uchiha clan came to be known as one of the two strongest clans, the other being the Senju clan. Madara Uchiha was particularly powerful, and, upon attaining the Mangekyō Sharingan, he took control of the clan. Under his leadership the Uchiha grew stronger, conquering whatever clans they came upon, such that, whenever the Uchiha clan was hired for a job, the opposing side would hire the Senju, and vice versa.
Founding of the Hidden leaf- The Senju clan grew tired of the endless fighting, and approached the Uchiha clan with a peace treaty. Madara feared that an alliance would ruin the Uchiha, but his clan disagreed, and he was forced to accept the treaty. The two clans came together to form Konoha, with Hashirama Senju, leader of the Senju clan, being selected as Hokage. Madara believed that this was proof that the Uchiha would be made subservient to the Senju, but his clan saw this only as his attempt to rekindle the flames of war. They turned their backs on him, and he defected. Following Madara's betrayal, the Second Hokage gave the Uchiha control of the Konoha Military Police Force as a sign of trust. According to Tobi, this was really just a way of keeping the Uchiha in check and out of Konoha's governing affairs. Over the years, some Uchiha, such as Setsuna, have figured out this motive's true meaning, and tried to rebel against the village as Madara did, but they found that it was too late to make a difference, as the Senju had already completely suppressed the Uchiha.
Massacre- Years later, after the Nine-Tails' Attack on Konoha, Konoha began to suspect that an Uchiha was behind the attack because of their ability to control the Nine-Tails with their Sharingan. Tobi stated that the clan was forced to live in a corner of the village, ostracised from the rest of the community, and placed under heavy surveillance. This gave birth to ill-will amongst the clan and the Uchiha interpreted this as confirmation of what Madara had warned them of years earlier, and began to plan overthrowing the village. Itachi disagreed with his father who was the then leader of the clan and militia Fugaku's coup d'état plan, and informed Konoha's leadership of what the Uchiha were up to. Shisui Uchiha, who had been told to keep an eye on his best friend Itachi also disagreed with the clan's plan and joined Itachi in his mission to put a stop to it. He attempted to used the ability of his Mangekyō Sharingan: Kotoamatsukami to stop them, but once again, Danzō, determined to protect the village the only way he saw possible, stole Shisui's right eye from him. After this, Shisui met with Itachi and saddened that he had failed to stop the clan, gave Itachi his left eye before Danzō came after it as well, telling him to protect the village and the name of the Uchiha. The Third Hokage, Hiruzen Sarutobi who had disagreed with the treatment the Uchiha were receiving, tried to negotiate for a more peaceful solution, but as time passed and that strategy seemed to be getting them nowhere, Danzō took matters into his own hands and inveigled Itachi to commit the genocide with threat of his clan's actions creating another war and innocent children, such as his little brother, becoming a casualty.
Within one night, the entire clan was slaughtered with only one Uchiha left alive: Itachi's younger brother, Sasuke. Sasuke would spend the next few years trying to avenge their family by killing Itachi, something Itachi had planned from the very beginning. After accomplishing this goal, Sasuke learned of Tobi's existence. Tobi, who is in fact Obito Uchiha, another survivor of the clan who was also the one behind the Nine-Tails' attack, told Sasuke about the Uchiha's history and why Itachi had wiped out the Uchiha, prompting Sasuke, with Tobi's help, to resolve to destroy Konoha. Sasuke would later be shown the truth by Itachi himself after he was reincarnated.
After many years, the Uchiha had been finally revived, although with few members. The hope that more would thrive without the Curse of the Hatred had stayed strong in many shinobi.
Special Abilities: Sharingan
Fire Release: Great Fireball Technique
Manipulating Windmill Triple Blades
Naka Shrine Pass Technique
Uchiha Flame Formation
Uchiha Return
Rinnegan (Under certain occasions)