The phrase "manifest destiny" refers to what idea in American history?

The phrase "manifest destiny" is historically significant as it encapsulates the belief that it was the inevitable fate of the United States to expand its territory across North America. This concept emerged in the 19th century and was rooted in a sense of American exceptionalism, suggesting that the nation was destined not only to expand but also to spread its values and institutions, such as democracy and capitalism.

The idea of manifest destiny justified the territorial expansion that the U.S. undertook during this period, including the acquisition of vast territories through treaties, purchases, and military conquests. It was often accompanied by a belief in the superiority of American culture and a divine right to spread that culture across the continent, which in many cases led to the displacement of Indigenous peoples and other nations. This expansionist view aligns closely with imperialism, as it involves extending a country's authority and influence, often at the expense of others.

In contrast, the other options such as environmental conservation, isolationism, and religious freedom do not relate directly to the idea of manifest destiny. Environmental conservation focuses on the responsible management of natural resources, isolationism pertains to avoiding international alliances or engagements, and religious freedom refers to the principle of individuals being free to practice their religion. Therefore, understanding manifest