He experimented with Harshirama Senju's cells, transplanting them into his own body. Doing this enabled him to unlock the powers of the Rinnegan, but he was too close to the end of his life to be able to do much with them.
Madara Uchiha's eyes were taken by his protege Obito Uchiha in order to activate the Infinite Tsukuyomi, a powerful genjutsu that placed the entire world under his control. Madara later transplanted his Rinnegan eyes into Nagato to influence the Akatsuki's plans.
So rinnegan is one of the three dolijutsu's (rinnegan sharingan and byakugan), It's also the most powerful one, which is a combination of Uchiha DNA and the Shanju DNA which combined gives you the DNA of Rikudo Sennin who was the person who discovered chakara and defeated the jubi, and the strongest ninja ever to live in the Naruto world... You need those two DNA's because the Uchiha blood line is Sharingan because of Sennins first son who had the mastery of the shringan eye which hellped in chakera and the Senju blood which came from the youngest son which gave him strength and speed which together forms the Rinnegan ...
Rinnegan
The Rinnegan is considered the most powerful eye in Naruto. It grants its user a wide range of abilities, including the power to control all six forms of chakra nature, the ability to summon creatures and the power to revive the dead.
His zodiac sign would be Leo, since he was born on July 23rd.
Yes. The real Madara Uchiha discovered the link between the Sharingan and the Rinnegan, before his death. The Rinnegan is an advanced form of the Sharingan, and he was able to awaken that ability.
Madara. Not only does he have the eternal Mangekyou Sharingan, he has the Rinnegan too, as well as the implanted cells from Hashirama Senju.
Yes. Experimenting with the cells of Hashirama Senju enabled Madara to evolve his Sharingan eyes into the Rinnegan. The original Rinnegan user, the Sage of the Six Paths, had two children, one was the first Senju, the other the first Uchiha, which explains why reuniting the bloodlines did this. He had his Rinnegan transferred to Nagato, but after Nagato's death, Obito retrieved the eyes from him.
Tobi is not Madara Uchiha. He is Obito Uchiha, whose right eye is his original Mangekyo Sharingan eye. His other eye is the eternal one, considering he can evolve it to the Rinnegan form, it's most likely to be one of Madara's.
I believe it is Madara Uchiha because after he killed Konan, he took rinnegan from Nagato and transplanted it into himself. He almost is as strong as the Sage of 6 Paths.
Madara Uchiha's eyes were taken by his protege Obito Uchiha in order to activate the Infinite Tsukuyomi, a powerful genjutsu that placed the entire world under his control. Madara later transplanted his Rinnegan eyes into Nagato to influence the Akatsuki's plans.
he is the first shinobi to get it,he then gave it to nagato for some unknown purposes; maybe it was part of his scheming of world domination. the way he got it was pretty simple in theory: as it is said in the story the sharingan,the mangekyou sharingan and then the rinnegan are the strongest and the most noble of doujutsu. so after getting his eternal mangekyou sharingan he was able to unlock this rinnengan thus becoming as powerful as the rikudu sennin.
Sasuke Uchiha and Madara Uchiha
He stole it from Nagato's body.
Madara is by far the strongest. If Itachi was stronger he would've killed madara himself.
In the manga yes, the Sage of Six Paths was the first to wield it then Madara Uchiha then Nagato and then Tobi who stole one of Nagato's eyes. In real life however no it is not real.
It still is Rinnegan, so yes.