The significant socio-political reform enacted in the United States in response to economic disparity after 1929 was the Social Security Act of 1935. This landmark legislation aimed to provide financial support to the elderly, unemployed, and disabled, addressing widespread poverty exacerbated by the Great Depression. By establishing a social safety net, the Act represented a shift towards government responsibility for citizens' welfare. Social Security has since evolved into a fundamental part of American social policy, influencing future legislation and shaping the social landscape by reducing poverty among the elderly and vulnerable populations.