Madara UCHIHA

Before the era of ninja villages, Madara was the most gifted member of the Uchiha clan. Even by his clan's standards, Madara's chakra was unusually strong. He grew up constantly competing and training with his younger brother,Izuna Uchiha. In their efforts to surpass the other, each gained their own Mangekyō Sharingan. With the power of the Mangekyō the two brothers took control of the clan, with Madara as its leader. Under his leadership, the clan conquered all they came across. Because of the never-ending series of battles of the time, Madara eventually began to suffer from overuse of the Mangekyō Sharingan, leaving him blind. In order to regain his sight he took Izuna's eyes for himself, granting him an "eternal" Mangekyō Sharingan with which he led the Uchiha clan to prosperity. While Itachi Uchiha would later go on to state that Madara took Izuna's eyes without his consent, it is unknown if this is actually true.

	The truce made by the Senju clan was accepted by Uchiha clan.

Over the years, the Uchiha had constantly fought with the equally powerful Senju clan and as such, Madara had an undying rivalry withHashirama Senju, the leader of the Senju clan. To bring an end to the constant fighting, Hashirama approached the Uchiha with an offer of peace. Although Madara never wanted peace with the Senju, the rest of the Uchiha wished to end the fighting, and Madara had no choice but to accept. The Senju, the Uchiha, and all the clans they had conquered came together to form the village of Konohagakure. Against Madara's wishes, the villagers selected Hashirama as the village's first Hokage. Madara feared that Hashirama would oppress the Uchiha, and tried to rally support for challenging his leadership. Rather than help him, the Uchiha turned their backs on him, believing he only desired more power.