A nations power based on wealth is called is usually referred to as GDP, or "Gross Domestic Product" (if I'm understanding the question correctly. Although this isn't always a great indicator of the fundamental "health" of the country.<span />
The Indus River empties into the Arabian Sea.
African American Spirituals had developed by the African American tradition/ belief and cultural diffusion which is the spread of good's and ideas among people of different cultures
