i think it is telegraphs and trading which also involved the new invention of steamboats
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The US has a little bit of influence on almost every country in the world, either culturally or economically.
The plantations were owned by economically well-off white people.
territories
false.
The US is an economically successful nation, which has enjoyed the benefits of great natural resources, technological innovation, and the free market, all of which have contributed to the number of wealthy people in the US.