Dr. Rosie Jayde Uyola explains how the 14th and 15th Amendments redefined American citizenship and democracy, and identify who was left out of these new laws.

Dr. Rosie Jayde Uyola teaches how Manifest Destiny drove U.S. expansion westward from 1844–1877, intensifying conflicts over land, slavery, and national identity. The Mexican-American War and resulting territorial gains reignited divisions that compromises could no longer contain, ultimately leading to Civil War.