Progressivism: Progressivism was a political movement during the late 19th and early 20th centuries that aimed to address social and economic problems through government intervention.
Manifest Destiny: Manifest Destiny was a belief held by many Americans during the 19th century that it was their destiny and duty to expand across the continent from coast to coast.
Civil Rights Movement: The Civil Rights Movement was a social movement in the mid-20th century that fought for equal rights and racial justice for African Americans in America.