The highest density for a sovereign country<span> would be for </span>Ecuador (53.69 people/km^2)
All citizens are required to pay taxes.
A the last battle of the revolutionary war
I think the navy was instrumental in the Roman conquest of the Mediterranean basin. The navy was also a key in defending against barbarian invasions.
Answer:
During that time America was in a depression so it really boosted up the economy and brought advancement in the places where the gold was found and mined. Keep going on west was another affect. America kept moving west and expanding the land and train tracks.
