It starts at a specific point in the manga, but I can't recall exactly without looking it up. You might want to check some manga forums or dedicated fan sites for the precise chapter.
No. Ryomen Sukuna is a fictional character from Japanese mythology and modern manga/anime. He doesn't have a basis in a true historical event or person.
Nope. Ryomen Sukuna has no basis in reality. It's a product of the creative minds of the writers and illustrators who designed a captivating fictional character for the enjoyment of the audience.
It could be other elements from Japanese folklore. There are many supernatural beings and concepts in Japanese mythology that might have influenced his creation.
" Snake Diao Shou " was a 1978 movie directed by Yuan Heping, with the leading roles of Chan, Yuan Xiaotian, and Huang Zhengli. The movie told the story of the two sects, Talon's Gate and Serpentine Gate, who had been enemies for generations. Both sides wanted to completely eradicate each other. The character played by Chan, Jian Fu, used his own combination of cat claw and snake fist to defeat Shangguan Yiyun and protect Master Bai. This new set of fist techniques was called the " Snake-shaped Diabolical Hands ". The movie showcased the fierce battle between the Snake Form Fist and the Eagle Claw.
Sukuna does die in the manga. The way it happens is quite dramatic and ties in with many other elements of the story, adding depth and tension to the overall narrative.