Final answer:
The United States embraced imperialism in the late 19th century, which led to significant social and economic benefits. By securing international markets and cheaper raw materials through policies like the 'open door' policy with China, the U.S. bolstered its economy. These actions, along with the belief in a 'civilizing mission', transformed both foreign territories and U.S. society, cementing America's place as a world power.
Step-by-step explanation:
In the transformative era of the late 19th century, the United States embraced imperialism, with economic and social impacts that arguably propelled the nation towards greater prosperity. Business moguls and government leaders robustly advocated for expansion, understanding that economic depression at home could be alleviated by tapping into international markets and securing inexpensive raw materials. With the industrial revolution in full swing, American businesses excelled, producing high-quality goods more efficiently, and the pursuit of an 'open door' policy in China successfully opened new markets for these goods, boosting the U.S. economy.
Missionaries and government officials believed the 'civilizing mission' would benefit not only the indigenous populations but also bring back rewards to the U.S. Technological infrastructure, such as telegraph lines and water systems, changed both the economic and social landscapes of the territories, often advantageously for the U.S. As the new century dawned, the U.S. increasingly became a key player on the global stage, its wealth and power closely linked to the strategies of imperialism.
The narrative of American expansion is a testament to the transformative power economic interests can wield on a country's foreign policy and societal evolution, setting the stage for America to become a dominant global force through economic and social influence.