GENERAL KNOWLEDGE

Detailed explanation-1: -Immortals (Ancient Greek: , romanized: Athánatoi) or Persian Immortals was the name given by Herodotus to an elite heavy infantry unit of 10, 000 soldiers in the army of the Achaemenid Empire.

Detailed explanation-2: -Hydarnes (Old Persian Vidarna): Persian nobleman, commander of the “immortals” during Xerxes’ expedition to Greece (480 BCE). Hydarnes was the son of another Hydarnes, one of the seven conspirators who had killed the Magian usurper Gaumâta and helped Darius become king of the Achaemenid empire in 521 BCE.

Detailed explanation-3: -According to the historian Herodotus, the Immortals were precisely 10, 000 strong, and it’s the maintenance of this number that led to their name. Every time an Immortal was killed, seriously wounded, taken ill or retired, they were immediately replaced, thus making them appear unstoppable.