Answer:
This term was coined by Mark Twain and Charles Dudley Warner in their book The Gilded Age: A Tale of Today, published in 1873. The term refers to the gilding of a cheaper metal with a thin layer of gold. Historians view the Gilded Age as a period of rapid economic, technological, political, and social transformation.
Answer:
it has established itself as an economic power.
It was the Truman Doctrine that established that the United States should give
political, military, and economic support to democratic nations threatened by<span> authoritarian powers</span>. These authoritarian powers were largely communist at the time.
Answer:9/11 was a terrorist event that changed the United States forever.
Explanation: National Security increased significantly after 9/11 and terrorism has been dealt with extremely different than it did pre-9/11