Bill it might be right because its a opinion question
Shipbuilding. World War 1 was the first major war in which a mass-produced navy was used.
Radio played a powerful and important role in the Great Depression for Americans, since it provided entertainment and a sense of comfort, especially when FDR would give his "fireside chats".
What are the options? maybe it’s he? not too sure
Cyrus McCormick built the mechanical reaper
