Read the book: "Guns, Germs and Steel". The Fates of Human Societies is in a 1997 book by Jared M. Diamond, professor of geography and physiology at UCLA.
They are so powerful because US is such a powerful country.
by joining forces with other powerful city-states
By trading with India.
Because of TRADING
by conquering other lands
Because they just MAJICLY DID . OKAY
Really not sure i am looking for the same answer :)
He is the President of a very powerful country.
they took steroids
Some became powerful from finding metal Ore and started making weapons.
After world war two the US became known as a power country so the US was way more powerful.
separation of powers