The Fugitive Slave Act, the Kansas-Nebraska Act, and John Brown's anti-slavery violence were the three main factors leading up to the Civil War. Both of these important events influenced American culture in some way. During the 1850s, growing tensions between the North and the South contributed to significant factors.
The Battle of Fort Donelson was an early battle in the American Civil War (1861-1865). The success of this battle opened the Tennessee River to Union shipping.
In 1819, the United States acquired the Spanish claims to the Pacific Northwest (as negotiated in the Nootka Convention) in the Adams-Onís Treaty. ... Americans continued arriving on the west coast of North America in significant numbers in the mid-1830s.