Civil Rights Movement: The Civil Rights Movement was a social movement during Period 4 that fought against racial discrimination and advocated for equal rights for African Americans.
Women's Suffrage Movement: The Women's Suffrage Movement was another important social movement during Period 4 that aimed to secure voting rights for women.
Labor Movement: The Labor Movement focused on improving working conditions, wages, and workers' rights during this period. It sought fair treatment for workers in industries such as factories and mines.