The 1840s refers to the decade between 1840 and 1849. It was a period of significant historical events, including the Irish potato famine, the rise of industrialization, and the expansion of western settlement in the United States.
Related terms
Industrial Revolution: A period of rapid industrialization characterized by technological advancements, factory production, and urban growth.
Manifest Destiny: The belief that it was America's destiny to expand westward from coast to coast.
Immigration Act of 1882: This act marked the first attempt by the U.S government to regulate immigration by imposing restrictions on certain groups based on nationality or occupation.