Record of ragnarock is manga about tounrament between gods and humans.

Almost all humanity characters that are fighters in real life fight in tournament to but there are some characters that didint fight in real life but will fight in tournament.

Nikola Tesla

Nikola Tesla was inventor, electrical engineer, mechanical engineer, and futurist best known for his contributions to the design of the modern alternating current (AC) electricity supply system.

Nikola Tesla discovered the basic operation of the alternating-current motor after a vision appeared to him in Budapest’s City Park, where he quickly drew his mental images in the sand with a stick.

Nikola Tesla throught his life was seing vision that helped him create his patents.

Grigori Rasputin

Grigori Yefimovich Rasputin was a Russian mystic and self-proclaimed holy man who befriended the family of Nicholas II, the last emperor of Russia, and gained considerable influence in late imperial Russia.

In late 1906, Rasputin began acting as a healer for the imperial couple's only son, Alexei, who suffered from hemophilia.

He was a divisive figure at court, seen by some Russians as a mystic, visionary, and prophet, and by others as a religious charlatan.

Nostradamus

Michel de Nostredame usually Latinised as Nostradamus,was a French astrologer, physician and reputed seer, who is best known for his book Les Prophéties, a collection of 942 poetic quatrains allegedly predicting future events.

In the years since the publication of his Les Prophéties, Nostradamus has attracted many supporters, who, along with much of the popular press, credit him with having accurately predicted many major world events.

English translations of his quatrains are almost always of extremely poor quality, based on later manuscripts, produced by authors with little knowledge of sixteenth-century French, and often deliberately mistranslated to make the prophecies fit whatever events the translator believed they were supposed to have predicted.