Final answer:
Presidents Woodrow Wilson, Theodore Roosevelt, Franklin D. Roosevelt, Lyndon B. Johnson, and John F. Kennedy introduced reform agendas known respectively as New Freedom, New Nationalism, New Deal, Great Society, and New Frontier, all of which exemplify major policy-making and governmental reforms in American history.
Step-by-step explanation:
The New Freedom, the New Nationalism, the New Deal, the Great Society, and the New Frontier are examples of presidents acting as leaders who introduced significant reforms and policy initiatives during their tenures. These phrases represent the various programs and ideals set forth by Presidents Woodrow Wilson, Theodore Roosevelt, Franklin D. Roosevelt, Lyndon B. Johnson, and John F. Kennedy, respectively. Each President pursued a vision of progress, symbolized by these terms, involving a combination of government expansion, economic reforms, social programs, and civil rights advancements which marked distinct periods of presidential leadership and American governance.