During the Great Depression, Franklin D. Roosevelt introduced the New Deal, a series of key legislations aimed at economic recovery and social reform. The New Deal encompassed programs designed to provide immediate relief to the unemployed, stimulate industrial activity, and regulate the banking system to prevent future crises. Notable initiatives included the Social Security Act, the Civilian Conservation Corps, and the Works Progress Administration. These measures transformed the role of the federal government in the economy and provided a safety net for millions, reshaping American society and ultimately laying the groundwork for modern social welfare programs.