Why is Alexander the Great considered the first true superhero of the Western Civilization?

The term
"superhero" is not really used to refer to Alexander the Great, as superheroes are
fictional beings with supernatural powers. Instead, Alexander is considered one of the great
military leaders of the world due to his success in conquering vast amounts of
territory.

Alexander III of Macedon (356 BC €“ 323 BC), usually known as
Alexander the Great, was the son of Philip of Macedon. His father, whose accomplishments are
often overshadowed by those of his son, was in fact an impressive military leader and capable
administrator, who greatly expanded Macedonia, transforming it from a rather small and
unimportant barbarian kingdom to an empire spanning much of northern Greece and becoming the
de facto ruler of much of the rest of what is now the Greek
nation.

Part of what makes Alexander such a storied figure is that he became
regent over the kingdom of Macedonia at the age of sixteen, then was given increasing military
responsibilities, and became king at the age of twenty when...