Mid-19th-century America refers to the time period in American history between roughly 1840 and 1860.
Related terms
Industrial Revolution: A period of rapid industrialization and technological advancements that transformed many aspects of society and the economy.
Manifest Destiny: The belief in the 19th-century United States that it was their destiny or right to expand across the continent from coast to coast.
Mexican-American War: A conflict between the United States and Mexico from 1846 to 1848 over territorial disputes, resulting in significant land gains for the U.S.