More than 20 million. The true growth of cities in the United States along with nature of its democratic rule led to a massive surplus in immigration during this span of time. Many of these immigrants were European in nature. One such example to demonstrate the massive surplus would be the city of New York, which was predominately foreign based around the year 1900.
It would be <span>The people of the Vedic Age could better obtain cattle and other goods. Goods that are unique and rare can be obtained through trade and commerce. Also it expands the goods and resources they have because of new resources from trade and commerce.</span>
It makes foreign goods more expensive. That allows domestic industry the luxury of charging more for their goods because now foreign goods are more expensive.