What was one consequence of the Civil War in the United States?

The abolition of slavery was a profound consequence of the Civil War in the United States. The war, fought from 1861 to 1865, primarily stemmed from deep-seated differences over the institution of slavery and its expansion into new territories. The conflict led to significant legislative changes, most notably the passage of the 13th Amendment in 1865, which formally abolished slavery throughout the country. This marked a monumental shift in American society and laid the groundwork for future civil rights advancements.

The establishment of new states, the expansion of U.S. territories, and an increase in trade with Europe, though significant in their own rights, were not direct outcomes of the Civil War. Rather, they relate to different historical contexts and developments. The Civil War's direct impact on the institution of slavery is what makes the abolition of slavery the most significant consequence of this conflict.