Who is the toughest man in the known history?
This is an impossible question to answer, as it entirely depends on your definition of tough. There are countless individuals who could hold the title for the strongest or most fearless warrior, such as Gilgamesh of the Sumerian Epics or some of the Spartan kings such as Leonidas of the Battle of Thermopylae. Other more modern figures could also be nominated, such as “Mad” Jack Churchill, who fought with a sword, bow, and bagpipes in the British Army throughout WWII or President Theodore Roosevelt, who was renowned for his fierce bravery and affinity for boxing. Even the immortal philosopher Plato should be mentioned, as he was the undefeated wrestling champion of Greece throughout his life; an accomplishment that should not be ignored, particularly as it was common for people to die after these bouts due to their wounds. This is an entirely subjective question that has no real answer, but it is certain that throughout history there have certainly been a considerable amount of contenders for the title.