Final answer:
Learning about Franklin D. Roosevelt is important because of his role during the Great Depression and World War II and the lasting impact of his policies.
Step-by-step explanation:
Learning about Franklin D. Roosevelt is important because he played a pivotal role in American history, particularly during the Great Depression and World War II. As the 32nd president of the United States, Roosevelt implemented his New Deal programs to address the economic crisis and introduced significant reforms. His leadership and policies transformed the role of the federal government and had a lasting impact on the country. Additionally, Roosevelt's response to the attack on Pearl Harbor led to the United States entering World War II, making him a key figure in the global conflict.