By allowing country's to administer themselves and by building infrastructure for the country to use. Basically by making things better.
Alexander the great did not conquer Rome or ancient Rome.
I think you are confused. Rome is in Italy. They didn't conquer themselves.
Rome was weak "morally."
No
Yes.
most of europe
alot
Macedonia.
Ancient Rome conquered 31 countries.
31 countries
Rome
The Hellenistic Kingdoms.