Battle of Gaugamela main Persian infantry was poorly trained and equipped in comparison to Alexander's pezhetairoi and hoplites. The only respectable infantry Darius had were his 2,000 Greek hoplites and his personal bodyguard, the 10,000 Immortals. The Greek mercenaries fought in a phalanx, armed not with a heavy shield but with spears no longer than three metres, while the spears of the Immortals were two metres long. Among the other Persian troops, the most heavily armed were the Armenians, who were armed the Greek way and probably fought as a phalanx. The rest of Darius' contingents were much more lightly armed; the main
Ancient Greek accent agreed with it in gender. Diacritic signs were not used in the classical period (5th–4th century BC). They were gradually introduced from the 2nd century BC onwards, but did not become commonly used in manuscripts until after 600 AD. The ancient Greek accent, at least in nouns, appears to have been inherited to a large extent from the original parent language from which Greek and many other European and Indian languages derive, Proto-Indo-European. This can be seen by comparing the accent of Greek words with the accent of words in the Vedic hymns (the most ancient form of the Sanskrit